The ForwardRuleReasonerRDFS can be configured to work at three different compliance levels:
This implements all of the RDFS axioms and closure rules with the exception of bNode entailments and datatypes
(rdfD 1). See above for comments on these. This is an expensive mode because all statements in the data graph
need to be checked for possible use of container membership properties. It also generates type assertions
for all resources and properties mentioned in the data (rdf1, rdfs4a, rdfs4b).
This omits the expensive checks for container membership properties and the "everything is a resource" and
"everything used as a property is one" rules (rdf1, rdfs4a, rdfs4b).
This mode does include all the axiomatic rules. Thus, for example, even materializing an "empty" RDF graph will
return triples such as [rdf:type rdfs:range rdfs:Class].
This implements just the transitive closure of subPropertyOf and subClassOf relations, the domain and range
entailments and the implications of subPropertyOf and subClassOf. It omits all of the axioms. This is probably
the most useful mode but is not the default because it is a less complete implementation of the standard.