@prefix : <foo://bla/meta#>.
@prefix p: <foo://bla/persons/>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
:descendant rdf:type owl:TransitiveProperty.
:hasChild rdfs:subPropertyOf :descendant.
:hasChild owl:inverseOf :hasParent.
p:john :hasChild p:alice, p:bob.
p:john :hasParent p:kate .