[Louis]'s sister [Tracy] asked him for some help planting her garden. [Nicole] asked her father [Louis] if she could spend the night with a friend and he said okay. [Jennifer] and her sister [Nicole] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while. [Jennifer] was playing in the sandbox with her brother [Michael].
('Tracy', 'Michael')
[Louis]'s sister [Tracy] asked him for some help planting her garden. [Nicole] asked her father [Louis] if she could spend the night with a friend and he said okay. [Jennifer] and her sister [Nicole] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while. [Jennifer] was playing in the sandbox with her brother [Michael].
[{('Tracy', 'nephew', 'Michael'): [('Tracy', 'brother', 'Louis'), ('Louis', 'son', 'Michael')]}, {('Louis', 'son', 'Michael'): [('Louis', 'daughter', 'Jennifer'), ('Jennifer', 'brother', 'Michael')]}, {('Louis', 'daughter', 'Jennifer'): [('Louis', 'daughter', 'Nicole'), ('Nicole', 'sister', 'Jennifer')]}]
['brother', 'daughter', 'sister', 'brother']