[Bobby] asked his father [Hugh] if he could have a video game and he said okay. [Lynn] and her sister [Lena] are the only children in their family. [Bobby] went to pick up his uncle from the airport with his uncle's wife [Lena].
('Hugh', 'Lynn')
[Bobby] asked his father [Hugh] if he could have a video game and he said okay. [Bobby] went to pick up his uncle from the airport with his uncle's wife [Lena]. [Lynn] and her sister [Lena] are the only children in their family.
[{('Hugh', 'sister', 'Lynn'): [('Hugh', 'sister', 'Lena'), ('Lena', 'sister', 'Lynn')]}, {('Hugh', 'sister', 'Lena'): [('Hugh', 'son', 'Bobby'), ('Bobby', 'aunt', 'Lena')]}]
['son', 'aunt', 'sister']