OntTerm.source as a property to make it clear that it exists

points to the deeper issues with how opaque the implementation is

source only appears as a keyword in the query result object and there
is a single line setattering those kwargs to OntTerm during
construction which makes it very hard to understand what is going on

ontquery/terms.py

@@ -427,6 +427,9 @@ def __real_init__(self, validated, results_gen, noId):
 
                 #print(keyword, value)
                 if keyword not in self.__firsts:  # already managed by OntId
+                    if keyword == 'source':  # FIXME the things i do in the name of documentability >_<
+                        keyword = '_source'
+
                     setattr(self, keyword, value)  # TODO value lists...
             self.validated = True
 
@@ -477,6 +480,15 @@ def debug(self):
         if self._graph:
             print(self._graph.serialize(format='nifttl').decode())
 
+    @property
+    def source(self):
+        """ The service that the term came from.
+            It is not obvious that source is being set from QueryResult.
+            I'm sure there are other issues like this due to the strange
+            interaction between OntTerm and QueryResult. """
+
+        return self._source
+
     @classmethod
     def search(cls, expression, prefix=None, filters=tuple(), limit=40):
         """ Something that actually sort of works """