[Heidi] invited her father [Wayne] to dinner. [Jeff]'s son is sick today so his mother, [Heidi], will stay home with him.
('Wayne', 'Jeff')
[Heidi] invited her father [Wayne] to dinner. [Jeff]'s son is sick today so his mother, [Heidi], will stay home with him.
[{('Wayne', 'son-in-law', 'Jeff'): [('Wayne', 'daughter', 'Heidi'), ('Heidi', 'husband', 'Jeff')]}]
['daughter', 'husband']