[Louis] and his brother [Pedro] are constantly trying to one up each other. [Rebecca] threw an anniversary party for her father, [Pedro], and her mother, [Dorothy]. [Dorothy]'s daughter, [Cheryl], helped with baking the cake.
('Louis', 'Cheryl')
[Louis] and his brother [Pedro] are constantly trying to one up each other. [Rebecca] threw an anniversary party for her father, [Pedro], and her mother, [Dorothy]. [Dorothy]'s daughter, [Cheryl], helped with baking the cake.
[{('Louis', 'niece', 'Cheryl'): [('Louis', 'brother', 'Pedro'), ('Pedro', 'daughter', 'Cheryl')]}, {('Pedro', 'daughter', 'Cheryl'): [('Pedro', 'daughter', 'Rebecca'), ('Rebecca', 'sister', 'Cheryl')]}, {('Rebecca', 'sister', 'Cheryl'): [('Rebecca', 'mother', 'Dorothy'), ('Dorothy', 'daughter', 'Cheryl')]}]
['brother', 'daughter', 'mother', 'daughter']