[Shantel] and her daughter [Tracy] went out to dinner. [Robert]'s sister [Tracy] asked him for some help planting her garden. [Mario] loves to play baseball with his dad, [Robert]. [Pedro] asked his mother [Shantel] to read to him. [Shantel] was too busy.
('Pedro', 'Mario')
[Pedro] asked his mother [Shantel] to read to him. [Shantel] was too busy. [Shantel] and her daughter [Tracy] went out to dinner. [Robert]'s sister [Tracy] asked him for some help planting her garden. [Mario] loves to play baseball with his dad, [Robert].
[{('Pedro', 'nephew', 'Mario'): [('Pedro', 'brother', 'Robert'), ('Robert', 'son', 'Mario')]}, {('Pedro', 'brother', 'Robert'): [('Pedro', 'mother', 'Shantel'), ('Shantel', 'son', 'Robert')]}, {('Shantel', 'son', 'Robert'): [('Shantel', 'daughter', 'Tracy'), ('Tracy', 'brother', 'Robert')]}]
['mother', 'daughter', 'brother', 'son']