_:hasParent <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#ObjectProperty> .
_:b1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#Restriction> .
_:b1 <http://www.w3.org/2002/07/owl#onProperty> _:hasParent .
_:b1 <http://www.w3.org/2002/07/owl#maxCardinality> "2"^^<http://www.w3.org/2001/XMLSchema#integer> .