[Pedro] asked his brother [Robert] to help him fix his car and he said he would after he got off work. [Heather] and her sister [Annie] were making dinner. Meanwhile, [Pedro]'s father [Heather], and [Annie]'s sister, [Cheryl], were setting the table.
('Cheryl', 'Robert')
[Heather] and her sister [Annie] were making dinner. Meanwhile, [Pedro]'s father [Heather], and [Annie]'s sister, [Cheryl], were setting the table. [Pedro] asked his brother [Robert] to help him fix his car and he said he would after he got off work.
[{('Cheryl', 'uncle', 'Robert'): [('Cheryl', 'father', 'Pedro'), ('Pedro', 'brother', 'Robert')]}, {('Cheryl', 'father', 'Pedro'): [('Cheryl', 'sister', 'Annie'), ('Annie', 'father', 'Pedro')]}, {('Annie', 'father', 'Pedro'): [('Annie', 'sister', 'Heather'), ('Heather', 'father', 'Pedro')]}]
['sister', 'sister', 'father', 'brother']