[Tracy] told her daughter [Erika] to wash up. Dinner was ready. [Robert] is picking up his niece [Erika] from school today because her parents are both working. [Tracy] and her sister [Dorothy] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while. [Harold] bought a book for his son [Robert].
('Dorothy', 'Harold')
[Tracy] and her sister [Dorothy] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while. [Tracy] told her daughter [Erika] to wash up. Dinner was ready. [Robert] is picking up his niece [Erika] from school today because her parents are both working. [Harold] bought a book for his son [Robert].
[{('Dorothy', 'father', 'Harold'): [('Dorothy', 'sister', 'Tracy'), ('Tracy', 'father', 'Harold')]}, {('Tracy', 'father', 'Harold'): [('Tracy', 'brother', 'Robert'), ('Robert', 'father', 'Harold')]}, {('Tracy', 'brother', 'Robert'): [('Tracy', 'daughter', 'Erika'), ('Erika', 'uncle', 'Robert')]}]
['sister', 'daughter', 'uncle', 'father']