[Pedro] drove his daughter [Cheryl] to school yesterday because she missed the bus. [Cheryl] told her dad [Pedro] about how much fun she had with her sister [Heather] at the park. [Cheryl] called [Annie], her sister, to see if she wanted to go out to eat.
('Annie', 'Heather')
[Cheryl] called [Annie], her sister, to see if she wanted to go out to eat. [Pedro] drove his daughter [Cheryl] to school yesterday because she missed the bus. [Cheryl] told her dad [Pedro] about how much fun she had with her sister [Heather] at the park.
[{('Annie', 'sister', 'Heather'): [('Annie', 'father', 'Pedro'), ('Pedro', 'daughter', 'Heather')]}, {('Pedro', 'daughter', 'Heather'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'sister', 'Heather')]}, {('Annie', 'father', 'Pedro'): [('Annie', 'sister', 'Cheryl'), ('Cheryl', 'father', 'Pedro')]}]
['sister', 'father', 'daughter', 'sister']