[Ronald] and his sister [Angelica] were twins. Still, they did n't look very much alike. [Marie] and [Robert] have been happily married for seven years, and are looking forward to another seventy together. [Robert] went on a roadtrip with his youngest child, [Ronald]. [Angelica] bought a Valentines day gift for her husband [John] and also got him a card.
('Marie', 'John')
[Marie] and [Robert] have been happily married for seven years, and are looking forward to another seventy together. [Robert] went on a roadtrip with his youngest child, [Ronald]. [Ronald] and his sister [Angelica] were twins. Still, they did n't look very much alike. [Angelica] bought a Valentines day gift for her husband [John] and also got him a card.
[{('Marie', 'son-in-law', 'John'): [('Marie', 'daughter', 'Angelica'), ('Angelica', 'husband', 'John')]}, {('Marie', 'daughter', 'Angelica'): [('Marie', 'husband', 'Robert'), ('Robert', 'daughter', 'Angelica')]}, {('Robert', 'daughter', 'Angelica'): [('Robert', 'son', 'Ronald'), ('Ronald', 'sister', 'Angelica')]}]
['husband', 'son', 'sister', 'husband']