[Annie] gave her Aunt [Marie] a kiss. [Pedro] went to pick up his daughter [Annie] from school on the last day before summer vacation. [Tracy] does n't like her brother [Pedro]. [Harold] was busy planning a camping trip with his daughter [Marie].
('Tracy', 'Harold')
[Tracy] does n't like her brother [Pedro]. [Pedro] went to pick up his daughter [Annie] from school on the last day before summer vacation. [Annie] gave her Aunt [Marie] a kiss. [Harold] was busy planning a camping trip with his daughter [Marie].
[{('Tracy', 'father', 'Harold'): [('Tracy', 'sister', 'Marie'), ('Marie', 'father', 'Harold')]}, {('Tracy', 'sister', 'Marie'): [('Tracy', 'brother', 'Pedro'), ('Pedro', 'sister', 'Marie')]}, {('Pedro', 'sister', 'Marie'): [('Pedro', 'daughter', 'Annie'), ('Annie', 'aunt', 'Marie')]}]
['brother', 'daughter', 'aunt', 'father']