Reasoners are classes that can perform reasoning on Graphs/Triple Stores to infer additional triples. These classes must implement the IInferenceEngine interface.
Reasoners are attached to Graphs/Triple Stores using the dnr:reasoner property as described in Configuration API - Graphs and Configuration API - Triple Stores.
Basic Configuration for a reasoner looks like the following:
@prefix dnr: <http://www.dotnetrdf.org/configuration#> .
_:reasoner a dnr:Reasoner ;
dnr:type "VDS.RDF.Query.Inference.StaticRdfsReasoner" ;
dnr:usingGraph _:schema .
_:schema a dnr:Graph ;
dnr:type "VDS.RDF.Graph" ;
dnr:fromFile "schema.rdf" .In the above example we configure a static RDFS reasoner which is initialised with the given graph which is itself loaded from the file schema.rdf
Any of the basic reasoner implementations provided in the library can be configured in this way. Any number of dnr:usingGraph properties can be used to initialise the reasoner with multiple input graphs if desired.