OWLSharp

OWLSharp is an API built atop RDFSharp with the goal of enabling semantic expressivity for:

• Modeling OWL2 ontologies (with tested Protégé compatibility)
• Exchanging them using standard OWL2 formats (OWL2/XML) and also RDF formats (via RDFSharp)
• Reasoning on them with a set of 25 OWL2 inference rules
• Validating them with a set of 29 OWL2 + 4 SKOS analysis rules

It also integrates a powerful SWRL engine for modeling, exchange and execution of custom inference rules