[Harold] took his daughter [Tracy] to softball practie. [Harold] and his wife [Shantel] went over to their son [Robert]'s house for dinner. [Lizzie], [Robert]'s daughter, was making a casserole, and they all thought it was delicious.
('Tracy', 'Lizzie')
[Harold] took his daughter [Tracy] to softball practie. [Harold] and his wife [Shantel] went over to their son [Robert]'s house for dinner. [Lizzie], [Robert]'s daughter, was making a casserole, and they all thought it was delicious.
[{('Tracy', 'niece', 'Lizzie'): [('Tracy', 'brother', 'Robert'), ('Robert', 'daughter', 'Lizzie')]}, {('Tracy', 'brother', 'Robert'): [('Tracy', 'father', 'Harold'), ('Harold', 'son', 'Robert')]}, {('Harold', 'son', 'Robert'): [('Harold', 'wife', 'Shantel'), ('Shantel', 'son', 'Robert')]}]
['father', 'wife', 'son', 'daughter']