@prefix : <foo://bla/meta#> .       @prefix p: <foo://bla/persons/> .
 p:paul :name "Paul"; :age 30; :mother p:kate; :father p:jack.
 p:sue :name "Sue"; :age 32; :mother p:kate.
 p:peter :name "Peter"; :age 28; :father p:jack; :hasChild p:andy.
 p:andy :name "Andy"; :age 4 .  p:kate :name "Kate".