[Rebecca] and her sister [Heather] braided each other's hair before school. [Shantel] went to visit her grandmother, [Annie], in the retirement home. [Pedro] was present in the delivery room when his daughter [Annie] was born, but when his daughter [Rebecca] was born he was too sick.
('Heather', 'Shantel')
[Rebecca] and her sister [Heather] braided each other's hair before school. [Pedro] was present in the delivery room when his daughter [Annie] was born, but when his daughter [Rebecca] was born he was too sick. [Shantel] went to visit her grandmother, [Annie], in the retirement home.
[{('Heather', 'grandmother', 'Shantel'): [('Heather', 'father', 'Pedro'), ('Pedro', 'mother', 'Shantel')]}, {('Heather', 'father', 'Pedro'): [('Heather', 'sister', 'Rebecca'), ('Rebecca', 'father', 'Pedro')]}, {('Pedro', 'mother', 'Shantel'): [('Pedro', 'daughter', 'Annie'), ('Annie', 'grandmother', 'Shantel')]}]
['sister', 'father', 'daughter', 'grandmother']