@prefix eg: <http://example.org/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

eg:index
	a rdf:Property ;
	rdfs:label "index" .

eg:name
	a rdf:Property ;
	rdfs:label "name" .

eg:ThingWithIndex
	a rdfs:Class ;
	rdfs:label "Thing With Index" ;
	rdfs:subClassOf [
		a owl:Restriction ;
		owl:onProperty eg:index ;
		owl:minCardinality 1
	] .

eg:ThingWithName
	a rdfs:Class ;
	rdfs:label "Thing With Name" ;
	rdfs:subClassOf [
		a owl:Restriction ;
		owl:onProperty eg:name ;
		owl:minCardinality 1
	] .

eg:something
	a rdf:Property ;
	rdfs:label "something" ;
	rdfs:range [
		owl:unionOf (
			eg:ThingWithIndex
			eg:ThingWithName
		)
	] .

eg:s1
	eg:something [
		eg:index 42
	] .

eg:s2
	eg:something [
		eg:name "ess"
	] .