# filename: ex187.ttl

@prefix d:  <http://learningsparql.com/ns/data#> .
@prefix ab: <http://learningsparql.com/ns/addressbook#> .

d:jane ab:hasParent d:gene .
d:gene ab:hasParent d:pat ;
       ab:gender    d:female .
d:joan ab:hasParent d:pat ;
       ab:gender    d:female . 
d:pat  ab:gender    d:male .
d:mike ab:hasParent d:joan .