[Kevin] idolizes his uncle, [Robert]. [Louis] took his sister [Tracy] and his brother [Pedro] out to dinner for their birthday last night and they had a great time. [Kevin] was so excited to introduce his new girlfriend to his mother, [Tracy].
('Pedro', 'Robert')
[Louis] took his sister [Tracy] and his brother [Pedro] out to dinner for their birthday last night and they had a great time. [Kevin] was so excited to introduce his new girlfriend to his mother, [Tracy]. [Kevin] idolizes his uncle, [Robert].
[{('Pedro', 'brother', 'Robert'): [('Pedro', 'brother', 'Louis'), ('Louis', 'brother', 'Robert')]}, {('Louis', 'brother', 'Robert'): [('Louis', 'sister', 'Tracy'), ('Tracy', 'brother', 'Robert')]}, {('Tracy', 'brother', 'Robert'): [('Tracy', 'son', 'Kevin'), ('Kevin', 'uncle', 'Robert')]}]
['brother', 'sister', 'son', 'uncle']