[Clarence] went hunting with his son, [Wayne]. [Wayne] was busy planning a camping trip with his daughter [Heidi].
('Heidi', 'Clarence')
[Wayne] was busy planning a camping trip with his daughter [Heidi]. [Clarence] went hunting with his son, [Wayne].
[{('Heidi', 'grandfather', 'Clarence'): [('Heidi', 'father', 'Wayne'), ('Wayne', 'father', 'Clarence')]}]
['father', 'father']