[Pedro] is picking up his niece [Jennifer] from school today because her parents are both working. [Harold] bought a book for his son [Pedro]. [Samuel] played catch with his dad, [Louis] [Samuel] has a brother who is younger than him. The brother has a sister whose name is [Jennifer].
('Louis', 'Harold')
[Samuel] played catch with his dad, [Louis] [Samuel] has a brother who is younger than him. The brother has a sister whose name is [Jennifer]. [Pedro] is picking up his niece [Jennifer] from school today because her parents are both working. [Harold] bought a book for his son [Pedro].
[{('Louis', 'father', 'Harold'): [('Louis', 'brother', 'Pedro'), ('Pedro', 'father', 'Harold')]}, {('Louis', 'brother', 'Pedro'): [('Louis', 'daughter', 'Jennifer'), ('Jennifer', 'uncle', 'Pedro')]}, {('Louis', 'daughter', 'Jennifer'): [('Louis', 'son', 'Samuel'), ('Samuel', 'sister', 'Jennifer')]}]
['son', 'sister', 'uncle', 'father']