[Heather] loves hanging out with her uncle [Louis]. [Louis] loved teaching his son, [Samuel], baseball. [Pedro]'s wife, [Dorothy], went to the library with her daughter, [Heather].
('Pedro', 'Samuel')
[Pedro]'s wife, [Dorothy], went to the library with her daughter, [Heather]. [Heather] loves hanging out with her uncle [Louis]. [Louis] loved teaching his son, [Samuel], baseball.
[{('Pedro', 'nephew', 'Samuel'): [('Pedro', 'brother', 'Louis'), ('Louis', 'son', 'Samuel')]}, {('Pedro', 'brother', 'Louis'): [('Pedro', 'daughter', 'Heather'), ('Heather', 'uncle', 'Louis')]}, {('Pedro', 'daughter', 'Heather'): [('Pedro', 'wife', 'Dorothy'), ('Dorothy', 'daughter', 'Heather')]}]
['wife', 'daughter', 'uncle', 'son']