I have recently started learning Web Ontology Language (OWL). I want to define a DataProperty with my own defined range of value. Consider the following property: <owl:DatatypeProperty rdf:ID=...

I need to write a SPARQL query to find a superclass/subclasses of a given class. For example, given http://139.91.183.30:9090/RDF/VRP/Examples/Phenomenon.rdf RDFS vocabulary file, I want to find t...

I have to sample N3 and I need to convert it to the corresponds RDF/XML format please , any help ? crop:AttributeValue a rdfs:Class . crop:SomeValue a rdfs:Class; rdfs:subClassOf crops:Attribut...

The description of the base classes defined by RDFS in the W3C reference document states that some classes are instances of one class and a subclass of another (or in some cases an instance and sub...

I'm looking to use SPARQL for a relatively basic task: Given a FOAF graph, I'd like to parse the elements I find in there, get their tags (if they exist) and then, use those as new graphs from whic...

Is there a tool for generate RDFS from an XSD?