diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e9dc882
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "tools/easyrdf"]
+	path = tools/easyrdf
+	url = git://github.com/njh/easyrdf.git
diff --git a/tools/classes.php b/tools/classes.php
new file mode 100644
index 0000000..b3191ba
--- /dev/null
+++ b/tools/classes.php
@@ -0,0 +1,370 @@
+<?php
+
+    class Phpspecgen_Term extends EasyRdf_Resource
+    {
+        public function termLink() {
+            $name = htmlspecialchars($this->localName());
+            return "<a href=\"#term-$name\">$name</a>";
+        }
+
+		protected function addPropertyList(&$list, $values, $skip)
+		{
+			foreach($values as $value)
+			{
+				$k = strval($value);
+				if(in_array(strval($value), $skip))
+				{
+					continue;
+				}
+				if($value instanceof EasyRdf_Collection)
+				{
+					$this->addPropertyList($list, $value, $skip);
+					continue;
+				}
+				if($value instanceof EasyRdf_Resource && $value->isBNode())
+				{
+					$union = $value->all('owl:unionOf');
+					$this->addPropertyList($list, $union, $skip);
+					continue;
+				}
+                if ($value instanceof Phpspecgen_Term)
+				{
+					$list[$k] = $value->termLink();
+                }
+				else if ($value instanceof EasyRdf_Resource)
+				{
+                	$list[$k] = $value->htmlLink($value->shorten());
+                }
+				else
+				{
+                    $list[$k] = strval($value);
+                }				
+			}
+		}
+
+        public function propertyList($property, $skip = null) {
+            $items = array();
+			if(!is_array($skip))
+			{
+				$skip = array();
+			}
+			$this->addPropertyList($items, $this->all($property), $skip);
+			ksort($items);
+            return $items;
+        }
+
+        public function propertyRow($title, $property, $skip = null) {
+            $items = $this->propertyList($property, $skip);
+            if (count($items) > 0) {
+                return "<tr><th>$title:</th> <td>".implode(', ', $items)."</td></tr>\n";
+            } else {
+                return '';
+            }
+        }
+    }
+
+    class Phpspecgen_Class extends Phpspecgen_Term
+    {
+        public function termType() {
+            return 'Class';
+        }
+
+        public function inheritedProperties() {
+            $properties = array();
+            foreach ($this->allParents() as $parent) {
+                foreach($parent->all('^rdfs:domain') as $property) {
+                    if ($property instanceof Phpspecgen_Term) {
+                        array_push($properties, $property->termLink());
+                    }
+                }
+            }
+            return $properties;
+        }
+
+        protected function allParents($depth=0) {
+            $parents = array();
+            foreach ($this->all('rdfs:subClassOf') as $parent) {
+                if (!$parent instanceof Phpspecgen_Class)
+                    continue;
+                array_push($parents, $parent);
+                if ($depth < 10)
+                    $parents = array_merge($parents, $parent->allParents($depth));
+            }
+            return $parents;
+        }
+    }
+
+    class Phpspecgen_Property extends Phpspecgen_Term
+    {
+        public function termType() {
+            return 'Property';
+        }
+    }
+
+    class Phpspecgen_ConceptScheme extends Phpspecgen_Term
+    {
+        public function termType() {
+            return 'Concept scheme';
+        }
+    }
+
+    class Phpspecgen_Individual extends Phpspecgen_Term
+    {
+        public function termType() {
+            return 'Named individual';
+        }
+    }
+
+    class Phpspecgen_Concept extends Phpspecgen_Term
+    {
+        public function termType() {
+            return 'Concept';
+        }
+    }
+
+    class Phpspecgen_Vocab extends EasyRdf_Resource
+    {
+    	public $revision = null;
+		public $basename = null;
+
+        protected function propertyDefinition($title, $property) {
+            $values = $this->all($property);
+            if (count($values) < 1)
+                return '';
+
+            $html = array();
+            foreach($values as $value) {
+                if ($value instanceof EasyRdf_Literal) {
+                    array_push($html, htmlspecialchars($value));
+                } else if ($value->get('foaf:homepage')) {
+                    array_push($html, $value->get('foaf:homepage')->htmlLink( $value->label() ));
+                } else {
+                    if ($value->isBnode()) {
+                        array_push($html, htmlspecialchars($value->label()) );
+                    } else {
+                        array_push($html, $value->htmlLink($value->label()) );
+                    }
+                }
+            }
+
+            return "<dt>$title</dt><dd>".implode(', ', array_unique($html))."</dd>\n";
+        }
+
+        public function htmlHeader() {
+        	$this->revision = $this->get('owl:versionInfo');
+            $html = "<h1>".htmlspecialchars($this->label())."</h1>\n";
+            $html .= "<em>".htmlspecialchars($this->get('dc:description|dc11:description|rdfs:comment'))."</em>\n";
+
+            $html .= "<dl>\n";
+			if(strlen($this->basename))
+           	{
+           		$html .= "<dt>This version</dt><dd><a href=\"" . $this->uri . $this->basename . "\">" . $this->uri . $this->basename . "</a></dd>\n";
+           	}
+           	$html .= "<dt>Latest version</dt><dd>".$this->htmlLink()."</dd>\n";
+           	$html .= $this->propertyDefinition('Created', 'dc:created|dc11:created');
+            $html .= $this->propertyDefinition('Date', 'dc:date|dc11:date|dc:issued|dc11:issued');
+            $html .= $this->propertyDefinition('Revision', 'owl:versionInfo');
+            $html .= $this->propertyDefinition('Authors', 'foaf:maker|dc:creator|dc11:creator');
+            $html .= $this->propertyDefinition('Contributors', 'dc:contributor|dc11:contributor');
+            $html .= "</dl>\n";
+            return $html;
+        }
+
+        public function htmlSummaryOfTerms() {
+            $html = "<h2 id=\"sec-summary\">Summary of Terms</h2>\n";
+			$classes = array();
+            $classCount = 0;
+			$props = array();
+            $propertyCount = 0;
+			$schemes = array();
+			$schemeCount = 0;
+			$concepts = array();
+			$conceptCount = 0;
+			$individuals = array();
+			$individualCount = 0;
+            foreach($this->all("^rdfs:isDefinedBy") as $term) {
+				if(method_exists($term, 'label'))
+				{
+					$k = strval($term->label());
+				}
+				else
+				{
+					$k = strval($term->localName());
+				}
+                if ($term instanceof Phpspecgen_Class)
+				{
+					$classes[$k] = $term->termLink();
+                    $classCount++;
+				}
+                else if ($term instanceof Phpspecgen_Property)
+				{
+					$props[$k] = $term->termLink();
+                    $propertyCount++;
+				}
+				else if ($term instanceof Phpspecgen_ConceptScheme)
+				{
+					$schemes[$k] = $term->termLink();
+					$schemeCount++;
+				}
+				else if ($term instanceof Phpspecgen_Concept)
+				{
+					$concepts[$k] = $term->termLink();
+					$conceptCount++;
+				}
+				else if ($term instanceof Phpspecgen_Individual)
+				{
+					$individuals[$k] = $term->termLink();
+					$individualCount++;
+				}
+            }
+			ksort($classes);
+			ksort($props);
+			ksort($schemes);
+			ksort($concepts);
+			ksort($individuals);
+            $html .= "<p>This vocabulary defines ";
+			$counts = array();
+			if($classCount > 0)
+			{
+				$counts[] = ($classCount == 1 ? 'one class' : ($classCount . ' classes'));
+			}
+			if($propertyCount > 0)
+			{
+				$counts[] = ($propertyCount == 1 ? 'one property' : ($propertyCount . ' properties'));
+			}
+			if($schemeCount > 0)
+			{
+				$counts[] = ($schemeCount == 1 ? 'one concept scheme' : ($schemeCount . ' concept schemes'));
+			}
+			if($conceptCount > 0)
+			{
+				$counts[] = ($conceptCount == 1 ? 'one concept' : ($conceptCount . ' concepts'));
+			}
+			if($individualCount > 0)
+			{
+				$counts[] = ($individualCount == 1 ? 'one named individual' : ($individualCount . ' named individuals'));
+			}
+			$sub = array_slice($counts, 0, -1);
+			if(count($counts) > 1)
+			{
+				$last = ' and ' . array_pop($counts);
+			}
+			else
+			{
+				$last = '';
+			}
+			$html .= implode(', ', $sub) . $last . '.'; 
+            $html .= "</p>\n";
+
+			$html .= '<dl>';
+			if($classCount)
+			{
+				$html .= '<dt>Classes</dt>';
+				$html .= '<dd>' . implode('&nbsp;| ', $classes) . '</dd>';
+			}
+			if($propertyCount)
+			{
+				$html .= '<dt>Properties</dt>';
+				$html .= '<dd>' . implode('&nbsp;| ', $props) . '</dd>';
+			}
+			if($schemeCount)
+			{
+				$html .= '<dt>Concept schemes</dt>';
+				$html .= '<dd>' . implode('&nbsp;| ', $schemes) . '</dd>';
+			}
+			if($conceptCount)
+			{
+				$html .= '<dt>Concepts</dt>';
+				$html .= '<dd>' . implode('&nbsp;| ', $concepts) . '</dd>';
+			}
+			if($individualCount)
+			{
+				$html .= '<dt>Named individuals</dt>';
+				$html .= '<dd>' . implode('&nbsp;| ', $individuals) . '</dd>';
+			}
+			$html .= '</dl>';
+/*
+            $html .= "<table>\n";
+            $html .= "<tr><th>Term Name</th><th>Type</th><th>Definition</th></tr>\n";
+            foreach($this->all("^rdfs:isDefinedBy") as $term) {
+                if ($term instanceof Phpspecgen_Term) {
+                    $html .= "<tr>";
+                    $html .= "<td>".$term->termLink()."</td>";
+                    $html .= "<td>".$term->termType()."</td>";
+                    $html .= "<td>".$term->getLiteral('rdfs:comment|rdfs:label')."</td>";
+                    $html .= "</tr>\n";
+                }
+            }
+            $html .= "</table>\n";
+*/
+            return $html;
+        }
+
+        public function htmlTerms($type, $title) {
+            $html = '';
+            $id = strtolower(str_replace(' ','-',$title));
+            $html .= "<h2 id=\"sec-$id\">$title</h2>\n";
+            foreach($this->all("^rdfs:isDefinedBy") as $term) {
+                if (!$term instanceof $type)
+                    continue;
+
+                $name = htmlspecialchars($term->localName());
+                $html .= "<h3 id=\"term-$name\">$name</h3\n";
+                $html .= "<p>".htmlspecialchars($term->get('rdfs:comment'))."</p>\n";
+                $html .= "<table>\n";
+                $html .= "  <tr><th>URI:</th> <td>".$term->htmlLink()."</td></tr>\n";
+                $html .= $term->propertyRow("Label", "rdfs:label");
+                $html .= $term->propertyRow("Status", "vs:term_status");
+				$html .= $term->propertyRow("Equivalent to", "owl:sameAs");
+				$html .= $term->propertyRow("Deprecated by", "ont:deprecatedBy");
+				$html .= $term->propertyRow("Deprecates", "^ont:deprecatedBy");
+                $html .= $term->propertyRow("Sub-classes", "^rdfs:subClassOf");
+                $html .= $term->propertyRow("Sub-properties", "^rdfs:subPropertyOf");
+                $html .= $term->propertyRow("Narrower terms", "^skos:broaderTransitive");
+                $html .= $term->propertyRow("Broader terms", "skos:broaderTransitive");
+                $html .= $term->propertyRow("Parent class", "rdfs:subClassOf");
+                $html .= $term->propertyRow("Parent property", "rdfs:subPropertyOf");
+                $html .= $term->propertyRow("Properties", "^rdfs:domain");
+                if ($term instanceof Phpspecgen_Class) {
+                    $properties = $term->inheritedProperties();
+                    if (count($properties) > 0)
+                        $html .= "  <tr><th>Inherited Properties:</th> ".
+                                 "<td>".join(', ', $properties)."</td></tr>\n";
+                }
+                $html .= $term->propertyRow("Range", "rdfs:range");
+                $html .= $term->propertyRow("In range of", "^rdfs:range");
+                $html .= $term->propertyRow("Domain", "rdfs:domain");
+				$html .= $term->propertyRow('Instances', '^rdf:type');
+                $html .= $term->propertyRow("See Also", "rdfs:seeAlso");
+				if($term instanceof Phpspecgen_Individual || $term instanceof Phpspecgen_Concept)
+				{
+					$html .= $term->propertyRow('Class', 'rdf:type', array('http://www.w3.org/2004/02/skos/core#Concept', 'http://www.w3.org/2002/07/owl#NamedIndividual'));
+				}
+				$html .= $term->propertyRow('Concepts', 'skos:hasTopConcept');
+				$html .= $term->propertyRow('Concept scheme', '^skos:hasTopConcept');
+                $html .= "</table>\n";
+                $html .= "</div>\n";
+            }
+            return $html;
+        }
+
+    }
+
+    # Extra namespaces we use
+    EasyRdf_Namespace::set('vann', 'http://purl.org/vocab/vann/');
+    EasyRdf_Namespace::set('vs', 'http://www.w3.org/2003/06/sw-vocab-status/ns#');
+	EasyRdf_Namespace::set('ont', 'http://purl.org/net/ns/ontology-annot#');
+
+    ## Add mappings
+    EasyRdf_TypeMapper::set('owl:Ontology', 'Phpspecgen_Vocab');
+    EasyRdf_TypeMapper::set('owl:Class', 'Phpspecgen_Class');
+    EasyRdf_TypeMapper::set('rdfs:Class', 'Phpspecgen_Class');
+    EasyRdf_TypeMapper::set('owl:Property', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('owl:DatatypeProperty', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('owl:ObjectProperty', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('owl:InverseFunctionalProperty', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('owl:FunctionalProperty', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('rdf:Property', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('skos:ConceptScheme', 'Phpspecgen_ConceptScheme');
+    EasyRdf_TypeMapper::set('skos:Concept', 'Phpspecgen_Concept');
+    EasyRdf_TypeMapper::set('owl:NamedIndividual', 'Phpspecgen_Individual');
diff --git a/tools/easyrdf b/tools/easyrdf
new file mode 160000
index 0000000..1371c8a
--- /dev/null
+++ b/tools/easyrdf
@@ -0,0 +1 @@
+Subproject commit 1371c8af2abd3a948c50962b2212fce1912000e7
diff --git a/tools/phpspecgen.php b/tools/phpspecgen.php
new file mode 100644
index 0000000..f0be86f
--- /dev/null
+++ b/tools/phpspecgen.php
@@ -0,0 +1,58 @@
+<?php
+
+/*
+
+Adapted from yvesr's phpspecgen:
+
+https://github.com/motools/musicontology.com/blob/master/docs/phpspecgen.php
+
+which is derived from njh's:
+
+https://github.com/njh/phpspecgen
+
+*/
+
+require_once(dirname(__FILE__) . '/easyrdf/lib/EasyRdf.php');
+require_once(dirname(__FILE__) . '/classes.php');
+
+$err = fopen('php://stderr', 'w');
+if(count($argv) < 3 || count($argv) > 5)
+{
+	fprintf($err, "Usage: %s FILE.ttl URI [BASENAME [TEMPLATE]]\n", $argv[0]);
+	exit(1);
+}
+
+$template = 'template.phtml';
+$basename = null;
+if(count($argv) > 3)
+{
+	$basename = $argv[3];
+}
+if(count($argv) > 4)
+{
+	$template = $argv[4];
+}
+
+# Extra namespaces we use
+EasyRdf_Namespace::set('odrl', 'http://www.w3.org/ns/odrl/2/');
+EasyRdf_Namespace::set('oma', 'http://www.openmobilealliance.com/oma-dd/');
+EasyRdf_Namespace::set('onix', 'http://www.editeur.org/onix-pl/');
+
+$uri = $argv[2];
+$graph = new EasyRdf_Graph($uri);
+$graph->parseFile($argv[1], 'turtle', $uri);
+$vocab = $graph->get('owl:Ontology', '^rdf:type');
+$vocab->basename = $basename;
+if (!isset($vocab))
+{
+	fprint($err, "%s: No OWL ontologies defined at that URL.\n", $argv[0]);
+	exit(1);
+}
+if(!file_exists($template))
+{
+	fprintf($err, "%s: cannot find template '%s'\n", $argv[0], $template);
+	exit(1);
+}
+
+require($template);
+
diff --git a/tools/phpspecgen/README.md b/tools/phpspecgen/README.md
new file mode 100644
index 0000000..90eb5b1
--- /dev/null
+++ b/tools/phpspecgen/README.md
@@ -0,0 +1,25 @@
+phpspecgen
+==========
+
+phpspecgen is a library for generating HTML documentation for Semantic Web based on ontology definitions in [RDFS] and [OWL].
+
+It is written in PHP and uses the [EasyRdf] library.
+
+
+Alternatives
+------------
+
+Some alternative RDF specification generators include:
+
+- http://github.com/specgen/specgen/
+- http://vocab.org/2004/03/toolchain
+- http://moustaki.org/ontospec/
+- http://github.com/ldodds/dowl
+- http://kantenwerk.org/vocdoc/
+- http://neologism.deri.ie/
+
+
+[RDFS]:    http://www.w3.org/TR/rdf-schema/
+[OWL]:     http://www.w3.org/TR/owl-ref/
+[EasyRdf]: http://github.com/njh/easyrdf
+
diff --git a/tools/phpspecgen/composer.json b/tools/phpspecgen/composer.json
new file mode 100644
index 0000000..8a34786
--- /dev/null
+++ b/tools/phpspecgen/composer.json
@@ -0,0 +1,23 @@
+{
+    "name": "njh/phpspecgen",
+    "description": "phpspecgen is a library for generating HTML documentation for Semantic Web based on ontology definitions in RDFS and OWL.",
+    "repositories": [
+        {
+            "type": "vcs",
+            "url": "https://github.com/njh/phpspecgen"
+        }
+    ],
+    "version": "0.1.0",
+    "license": "BSD-3-Clause",
+    "require": {
+        "njh/easyrdf": "0.7.0"
+    },
+    "authors": [
+        {
+            "name": "Nicholas Humfrey",
+            "email": "njh@aelius.com",
+            "homepage": "http://www.aelius.com/njh/",
+            "role": "Developer"
+        }
+     ]
+}
diff --git a/tools/phpspecgen/phpspecgen.php b/tools/phpspecgen/phpspecgen.php
new file mode 100644
index 0000000..41efdab
--- /dev/null
+++ b/tools/phpspecgen/phpspecgen.php
@@ -0,0 +1,272 @@
+<?php
+    set_include_path(get_include_path() . PATH_SEPARATOR . '../easyrdf/lib/');
+    require_once "EasyRdf.php";
+
+    class Phpspecgen_Term extends EasyRdf_Resource
+    {
+        public function termLink() {
+            $name = htmlspecialchars($this->localName());
+            return "<a href=\"#term-$name\">$name</a>";
+        }
+
+        public function propertyList($property) {
+            $items = array();
+            foreach ($this->all($property) as $value) {
+                if ($value instanceof Phpspecgen_Term) {
+                    array_push($items, $value->termLink());
+                } else if ($value instanceof EasyRdf_Resource) {
+                    array_push($items, $value->htmlLink($value->shorten()));
+                } else {
+                    array_push($items, strval($value));
+                }
+            }
+            return $items;
+        }
+
+        public function propertyRow($title, $property) {
+            $items = $this->propertyList($property);
+            if (count($items) > 0) {
+                return "<tr><th>$title:</th> <td>".implode(', ', $items)."</td></tr>\n";
+            } else {
+                return '';
+            }
+        }
+    }
+
+    class Phpspecgen_Class extends Phpspecgen_Term
+    {
+        public function termType() {
+            return 'Class';
+        }
+
+        public function inheritedProperties() {
+            $properties = array();
+            foreach ($this->allParents() as $parent) {
+                foreach($parent->all('^rdfs:domain') as $property) {
+                    if ($property instanceof Phpspecgen_Term) {
+                        array_push($properties, $property->termLink());
+                    }
+                }
+            }
+            return $properties;
+        }
+
+        protected function allParents($depth=0) {
+            $parents = array();
+            foreach ($this->all('rdfs:subClassOf') as $parent) {
+                if (!$parent instanceof Phpspecgen_Class)
+                    continue;
+                array_push($parents, $parent);
+                if ($depth < 10)
+                    $parents = array_merge($parents, $parent->allParents($depth));
+            }
+            return $parents;
+        }
+    }
+
+    class Phpspecgen_Property extends Phpspecgen_Term
+    {
+        public function termType() {
+            return 'Property';
+        }
+    }
+
+    class Phpspecgen_Vocab extends EasyRdf_Resource
+    {
+        protected function propertyDefinition($title, $property) {
+            $values = $this->all($property);
+            if (count($values) < 1)
+                return '';
+
+            $html = array();
+            foreach($values as $value) {
+                if ($value instanceof EasyRdf_Literal) {
+                    array_push($html, htmlspecialchars($value));
+                } else if ($value->get('foaf:homepage')) {
+                    array_push($html, $value->get('foaf:homepage')->htmlLink( $value->label() ));
+                } else {
+                    if ($value->isBnode()) {
+                        array_push($html, htmlspecialchars($value->label()) );
+                    } else {
+                        array_push($html, $value->htmlLink($value->label()) );
+                    }
+                }
+            }
+
+            return "<dt>$title</dt><dd>".implode(', ', array_unique($html))."</dd>\n";
+        }
+
+        public function htmlHeader() {
+            $html = "<h1>".htmlspecialchars($this->label())."</h1>\n";
+            $html .= "<em>".htmlspecialchars($this->get('dc:description|dc11:description|rdfs:comment'))."</em>\n";
+
+            $html .= "<dl>\n";
+            $html .= "<dt>Latest Version</dt><dd>".$this->htmlLink()."</dd>\n";
+            $html .= $this->propertyDefinition('Created', 'dc:created|dc11:created');
+            $html .= $this->propertyDefinition('Date', 'dc:date|dc11:date');
+            $html .= $this->propertyDefinition('Revision', 'owl:versionInfo');
+            $html .= $this->propertyDefinition('Authors', 'foaf:maker|dc:creator|dc11:creator');
+            $html .= $this->propertyDefinition('Contributors', 'dc:contributor|dc11:contributor');
+            $html .= "</dl>\n";
+            return $html;
+        }
+
+        public function htmlSummaryOfTerms() {
+            $html = "<h2 id=\"sec-summary\">Summary of Terms</h2>\n";
+            $classCount = 0;
+            $properyCount = 0;
+            foreach($this->all("^rdfs:isDefinedBy") as $term) {
+                if ($term instanceof Phpspecgen_Class)
+                    $classCount++;
+                if ($term instanceof Phpspecgen_Property)
+                    $properyCount++;
+            }
+            $html .= "<p>This vocabulary defines";
+            if ($classCount == 0) {
+                $html .= " no classes";
+            } else if ($classCount == 1) {
+                $html .= " one class";
+            } else {
+                $html .= " $classCount classes";
+            }
+            if ($properyCount == 0) {
+                $html .= " and no properties.";
+            } else if ($properyCount == 1) {
+                $html .= " and one property.";
+            } else {
+                $html .= " and $properyCount properties.";
+            }
+            $html .= "</p>\n";
+
+            $html .= "<table>\n";
+            $html .= "<tr><th>Term Name</th><th>Type</th><th>Definition</th></tr>\n";
+            foreach($this->all("^rdfs:isDefinedBy") as $term) {
+                if ($term instanceof Phpspecgen_Term) {
+                    $html .= "<tr>";
+                    $html .= "<td>".$term->termLink()."</td>";
+                    $html .= "<td>".$term->termType()."</td>";
+                    $html .= "<td>".$term->getLiteral('rdfs:comment|rdfs:label')."</td>";
+                    $html .= "</tr>\n";
+                }
+            }
+            $html .= "</table>\n";
+            return $html;
+        }
+
+        public function htmlTerms($type, $title) {
+            $html = '';
+            $id = strtolower(str_replace(' ','-',$title));
+            $html .= "<h2 id=\"sec-$id\">$title</h2>\n";
+            foreach($this->all("^rdfs:isDefinedBy") as $term) {
+                if (!$term instanceof $type)
+                    continue;
+
+                $name = htmlspecialchars($term->localName());
+                $html .= "<h3 id=\"term-$name\">$name</h3\n";
+                $html .= "<p>".htmlspecialchars($term->get('rdfs:comment'))."</p>\n";
+                $html .= "<table>\n";
+                $html .= "  <tr><th>URI:</th> <td>".$term->htmlLink()."</td></tr>\n";
+                $html .= $term->propertyRow("Label", "rdfs:label");
+                $html .= $term->propertyRow("Status", "vs:term_status");
+                $html .= $term->propertyRow("Subclasses", "^rdfs:subClassOf");
+                $html .= $term->propertyRow("Parent Class", "rdfs:subClassOf");
+                $html .= $term->propertyRow("Properties", "^rdfs:domain");
+                if ($term instanceof Phpspecgen_Class) {
+                    $properties = $term->inheritedProperties();
+                    if (count($properties) > 0)
+                        $html .= "  <tr><th>Inherited Properties:</th> ".
+                                 "<td>".join(', ', $properties)."</td></tr>\n";
+                }
+                $html .= $term->propertyRow("Range", "rdfs:range");
+                $html .= $term->propertyRow("Domain", "rdfs:domain");
+                $html .= $term->propertyRow("See Also", "rdfs:seeAlso");
+                $html .= "</table>\n";
+                $html .= "</div>\n";
+            }
+            return $html;
+        }
+
+    }
+
+    # Extra namespaces we use
+    EasyRdf_Namespace::set('vann', 'http://purl.org/vocab/vann/');
+    EasyRdf_Namespace::set('vs', 'http://www.w3.org/2003/06/sw-vocab-status/ns#');
+
+    ## Add mappings
+    EasyRdf_TypeMapper::set('owl:Ontology', 'Phpspecgen_Vocab');
+    EasyRdf_TypeMapper::set('owl:Class', 'Phpspecgen_Class');
+    EasyRdf_TypeMapper::set('rdfs:Class', 'Phpspecgen_Class');
+    EasyRdf_TypeMapper::set('owl:Property', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('owl:DatatypeProperty', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('owl:ObjectProperty', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('owl:InverseFunctionalProperty', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('owl:FunctionalProperty', 'Phpspecgen_Property');
+    EasyRdf_TypeMapper::set('rdf:Property', 'Phpspecgen_Property');
+?>
+<html>
+<head>
+  <title>phpspecgen</title>
+  <link rel="stylesheet" type="text/css" href="style.css" />
+</head>
+<body>
+
+<?php
+
+    $options = getopt('u:');
+    if (!empty($_REQUEST['uri'])) {
+      $uri = $_REQUEST['uri'];
+    } elseif(array_key_exists('u', $options)) {
+      $uri = $options['u'];
+    }
+
+    if (!empty($uri)) {
+
+      // Parse the document
+      $graph = new EasyRdf_Graph($uri);
+      $graph->load($uri);
+
+      // Get the first ontology in the document
+      $vocab = $graph->get('owl:Ontology', '^rdf:type');
+      if (!isset($vocab)) {
+          print "<p>Error: No OWL ontologies defined at that URL.</p>\n";
+      } else {
+          // FIXME: register the preferredNamespacePrefix
+
+          print $vocab->htmlHeader();
+          print $vocab->htmlSummaryOfTerms();
+          print $vocab->htmlTerms('Phpspecgen_Class', 'Classes');
+          print $vocab->htmlTerms('Phpspecgen_Property', 'Properties');
+
+          print $graph->dump();
+      }
+
+    } else {
+        $examples = array(
+            'FOAF' => 'http://xmlns.com/foaf/spec/',
+            'DOAP' => 'http://usefulinc.com/ns/doap#',
+            'LODE' => 'http://linkedevents.org/ontology/',
+            'Ordered List Ontology' => 'http://purl.org/ontology/olo/core#',
+            'Whisky Vocabulary' => 'http://vocab.org/whisky/terms.rdf',
+            'Sport Ontology' => 'http://www.bbc.co.uk/ontologies/sport/2011-02-17.rdf',
+            'Music Ontology' => 'http://purl.org/ontology/mo/',
+            'Programme Ontology' => 'http://www.bbc.co.uk/ontologies/programmes/2009-09-07.rdf'
+        );
+
+        print "<h1>phpspecgen</h1>\n";
+        print "<form method='get' action='?'><div>";
+        print "<div><label for='uri'>URI of a vocabulary (OWL or RDFS):</label>\n";
+        print "<input type='text' id='uri' name='uri' size='40' />\n";
+        print "<input type='submit' value='Submit' />\n";
+        print "</div></form>\n";
+        print "<p>Or pick an example:</p>\n";
+        print "<ul>\n";
+        foreach ($examples as $name => $uri) {
+            print "<li><a href='".htmlspecialchars('?uri='.urlencode($uri))."'>".
+                  htmlspecialchars($name)."</a></li>\n";
+        }
+        print "</ul>\n";
+
+    }
+?>
+</body>
+</html>
diff --git a/tools/phpspecgen/style.css b/tools/phpspecgen/style.css
new file mode 100644
index 0000000..2107bb9
--- /dev/null
+++ b/tools/phpspecgen/style.css
@@ -0,0 +1,116 @@
+  code.xml .text {
+    color: #000000;
+    background: transparent;
+  }
+  code.xml .elem {
+    color: #000080;
+    background: transparent;
+  }
+  code.xml .attr {
+    color: #008080;
+    background: transparent;
+  }
+  code.xml .attrVal {
+    color: #666666;
+    background: transparent;
+  }
+  code.xml .highlight {
+    background: #ffff00;
+  }
+
+  h1, h2, h3, h4, h5, h6 {
+    font-family: Georgia, "Times New Roman", Times, serif;
+    font-style:italic;
+  }
+
+  pre {
+    border: 1px #9999cc dotted;
+    background-color: #f3f3ff;
+    color: #000000;
+    width: 90%;
+  }
+
+  blockquote {
+    border-style: solid;
+    border-color: #d0dbe7;
+    border-width: 0 0 0 .25em;
+    padding-left: 0.5em;
+  }
+
+  blockquote, q {
+    font-style: italic;
+  }
+
+  body {
+    font-family: verdana, geneva, arial, sans-serif;
+  }
+
+  a, p,blockquote, q, dl, dd, dt {
+    font-family: verdana, geneva, arial, sans-serif;
+    font-size: 1em;
+  }
+
+
+  dt {
+    font-weight: bold;
+  }
+
+
+:link { color: #00C; background: transparent }
+:visited { color: #609; background: transparent }
+:link:active, :visited:active { color: #C00; background: transparent }
+:link:hover, :visited:hover { background: #ffa; }
+code :link, code :visited { color: inherit; }
+
+h1, h2, h3, h4, h5, h6 { text-align: left }
+h1, h2, h3 { color: #996633; background: transparent; }
+h1 { font: 900 170% sans-serif; border-bottom: 1px solid gray; }
+h2 { font: 800 140% sans-serif; border-bottom: 1px solid gray; }
+h3 { font: 700 120% sans-serif }
+h4 { font: bold 100% sans-serif }
+h5 { font: italic 100% sans-serif }
+h6 { font: small-caps 100% sans-serif }
+
+body { padding: 0 4em 2em 4em;  line-height: 1.35; }
+
+pre { margin-left: 2em; /* overflow: auto; */ }
+h1 + h2 { margin-top: 0; }
+h2 { margin: 3em 0 1em 0; }
+h2 + h3 { margin-top: 0; }
+h3 { margin: 2em 0 1em 0; }
+h4 { margin: 1.5em 0 0.75em 0; }
+h5, h6 { margin: 1.5em 0 1em; }
+p { margin: 1em 0; }
+dl, dd { margin-top: 0; margin-bottom: 0; }
+dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; }
+dd dt { margin-top: 0.25em; margin-bottom: 0; }
+dd p { margin-top: 0; }
+p + * &gt; li, dd li { margin: 1em 0; }
+dt, dfn { font-weight: bold; font-style: normal; }
+pre, code { font-size: inherit; font-family: monospace; }
+pre strong { color: black; font: inherit; font-weight: bold; background: yellow; }
+pre em { font-weight: bolder; font-style: normal; }
+var sub { vertical-align: bottom; font-size: smaller; position: relative; top: 0.1em; }
+blockquote { margin: 0 0 0 2em; border: 0; padding: 0; font-style: italic; }
+ins { background: green; color: white; /* color: green; border: solid thin lime; padding: 0.3em; line-height: 1.6em; */ text-decoration: none; }
+del { background: maroon; color: white; /* color: maroon; border: solid thin red; padding: 0.3em; line-height: 1.6em; */ text-decoration: line-through; }
+body ins, body del { display: block; }
+body * ins, body * del { display: inline; }
+
+table.properties { width: 90%; }
+table.properties th { text-align: right; width: 9em; font-weight: normal; }
+
+table { border-collapse: collapse;  border: solid #999999 1px;}
+table thead { border-bottom: solid #999999 2px; }
+table td, table th {
+  border-left: solid #999999 1px;
+  border-right: solid #999999 1px;
+  border-bottom: solid #999999 1px;
+  vertical-align: top;
+  padding: 0.2em;
+}
+
+.historyList {
+  font-size: 0.9em;
+}
+.termuri { margin-bottom: 0.5em;}