[Pedro] took his daughter [Annie] to softball practie. [Tracy] loves her brother [Robert]. [Tracy] is n't too fond of her brother [Pedro] though. [Dorothy]'s daughter, [Annie], asked her mom to read her a story.
('Dorothy', 'Robert')
[Dorothy]'s daughter, [Annie], asked her mom to read her a story. [Pedro] took his daughter [Annie] to softball practie. [Tracy] loves her brother [Robert]. [Tracy] is n't too fond of her brother [Pedro] though.
[{('Dorothy', 'brother', 'Robert'): [('Dorothy', 'daughter', 'Annie'), ('Annie', 'uncle', 'Robert')]}, {('Annie', 'uncle', 'Robert'): [('Annie', 'father', 'Pedro'), ('Pedro', 'brother', 'Robert')]}, {('Pedro', 'brother', 'Robert'): [('Pedro', 'sister', 'Tracy'), ('Tracy', 'brother', 'Robert')]}]
['daughter', 'father', 'sister', 'brother']