[Pedro] was eating dinner at his sister [Marie]'s house when his daughter [Rebecca] called and said she needed a ride home from band practice. [Dorothy] could n't pick up her son [James] at the airport. She decided to ask her daughter [Rebecca] to do it.
('Marie', 'James')
[Pedro] was eating dinner at his sister [Marie]'s house when his daughter [Rebecca] called and said she needed a ride home from band practice. [Dorothy] could n't pick up her son [James] at the airport. She decided to ask her daughter [Rebecca] to do it.
[{('Marie', 'nephew', 'James'): [('Marie', 'brother', 'Pedro'), ('Pedro', 'son', 'James')]}, {('Pedro', 'son', 'James'): [('Pedro', 'daughter', 'Rebecca'), ('Rebecca', 'brother', 'James')]}, {('Rebecca', 'brother', 'James'): [('Rebecca', 'mother', 'Dorothy'), ('Dorothy', 'son', 'James')]}]
['brother', 'daughter', 'mother', 'son']