[Beverly]'s son, [Samuel], played with the cake dough while [Beverly]'s daughter, [Karen], mixed together ingredients. [Pedro] is a great uncle of [Karen]. [Samuel] asked his father [Louis] if he could have a video game and he said okay.
('Louis', 'Pedro')
[Samuel] asked his father [Louis] if he could have a video game and he said okay. [Beverly]'s son, [Samuel], played with the cake dough while [Beverly]'s daughter, [Karen], mixed together ingredients. [Pedro] is a great uncle of [Karen].
[{('Louis', 'brother', 'Pedro'): [('Louis', 'son', 'Samuel'), ('Samuel', 'uncle', 'Pedro')]}, {('Samuel', 'uncle', 'Pedro'): [('Samuel', 'mother', 'Beverly'), ('Beverly', 'brother', 'Pedro')]}, {('Beverly', 'brother', 'Pedro'): [('Beverly', 'daughter', 'Karen'), ('Karen', 'uncle', 'Pedro')]}]
['son', 'mother', 'daughter', 'uncle']