[Antonio] walked his daughters [Laura] and [Emma] to school. [Bettie] needed to go to the store. [Bettie] asked her sister [Laura] for a ride. [Antonio] went to pick up his daughter [Emma] from school on the last day before summer vacation.
('Antonio', 'Bettie')
[Antonio] went to pick up his daughter [Emma] from school on the last day before summer vacation. [Antonio] walked his daughters [Laura] and [Emma] to school. [Bettie] needed to go to the store. [Bettie] asked her sister [Laura] for a ride.
[{('Antonio', 'daughter', 'Bettie'): [('Antonio', 'daughter', 'Emma'), ('Emma', 'sister', 'Bettie')]}, {('Emma', 'sister', 'Bettie'): [('Emma', 'sister', 'Laura'), ('Laura', 'sister', 'Bettie')]}, {('Emma', 'sister', 'Laura'): [('Emma', 'father', 'Antonio'), ('Antonio', 'daughter', 'Laura')]}]
['daughter', 'father', 'daughter', 'sister']