an example where multiple subProperties are created to allow for query flexibility

KG-SubPropertyOf-Title.py

    graph.add((KG.title, RDF.type, RDF.Property))
    graph.add((KG.title, RDFS.label, Literal("title")))
    graph.add((KG.title, RDFS.comment, Literal("this is a super-property that can be used to query all items that "
                                                  "have a title")))
    graph.add((KG.title, RDFS.range, XSD.string))

    #all title are subproperties of KG:title, allowing for flexible querying.
    graph.add((KG.paperTitle, RDF.type, RDF.Property))
    graph.add((KG.paperTitle, RDFS.domain, KG.Paper))
    graph.add((KG.paperTitle, RDFS.range, XSD.string))
    graph.add((KG.paperTitle, RDFS.subPropertyOf, KG.title))
    graph.add((KG.paperTitle, RDFS.label, Literal("title of a Paper")))

    graph.add((KG.journalTitle, RDF.type, RDF.Property))
    graph.add((KG.journalTitle, RDFS.domain, KG.Journal))
    graph.add((KG.journalTitle, RDFS.range, XSD.string))
    graph.add((KG.journalTitle, RDFS.subPropertyOf, KG.title))
    graph.add((KG.journalTitle, RDFS.label, Literal("title of a Journal")))

    graph.add((KG.conferenceTitle, RDF.type, RDF.Property))
    graph.add((KG.conferenceTitle, RDFS.domain, KG.Conference))
    graph.add((KG.conferenceTitle, RDFS.range, XSD.string))
    graph.add((KG.conferenceTitle, RDFS.subPropertyOf, KG.title))
    graph.add((KG.conferenceTitle, RDFS.label, Literal("title of a Conference")))