@prefix : <foo://bla#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
:TwoChildren owl:equivalentClass [a owl:Restriction;
  owl:onProperty :hasChild; owl:cardinality 2].
:ThreeMaleChildren owl:equivalentClass [a owl:Restriction;
  owl:onProperty :hasChild; owl:onClass :Male; owl:minQualifiedCardinality 3].
:TCTMC owl:equivalentClass
  [ owl:intersectionOf (:TwoChildren :ThreeMaleChildren) ].