[Pedro] decided to take his daughter [Heather] to Disneyworld. [Harold] went to the mall with his daughter [Marie]. [Marie]'s brother [Dorothy] stayed home because he hates the mall. [Dorothy] picked up her daughter [Heather] from school early.
('Pedro', 'Harold')
[Pedro] decided to take his daughter [Heather] to Disneyworld. [Dorothy] picked up her daughter [Heather] from school early. [Harold] went to the mall with his daughter [Marie]. [Marie]'s brother [Dorothy] stayed home because he hates the mall.
[{('Pedro', 'father', 'Harold'): [('Pedro', 'sister', 'Marie'), ('Marie', 'father', 'Harold')]}, {('Pedro', 'sister', 'Marie'): [('Pedro', 'daughter', 'Heather'), ('Heather', 'aunt', 'Marie')]}, {('Heather', 'aunt', 'Marie'): [('Heather', 'mother', 'Dorothy'), ('Dorothy', 'sister', 'Marie')]}]
['daughter', 'mother', 'sister', 'father']