[Harold] took his daughter [Tracy] and son [Pedro] to the beach. [Tracy] is [Kevin]'s mother. She takes very good care of him. [Beverly] is a sister of [Pedro].
('Kevin', 'Beverly')
[Tracy] is [Kevin]'s mother. She takes very good care of him. [Harold] took his daughter [Tracy] and son [Pedro] to the beach. [Beverly] is a sister of [Pedro].
[{('Kevin', 'aunt', 'Beverly'): [('Kevin', 'mother', 'Tracy'), ('Tracy', 'sister', 'Beverly')]}, {('Tracy', 'sister', 'Beverly'): [('Tracy', 'father', 'Harold'), ('Harold', 'daughter', 'Beverly')]}, {('Harold', 'daughter', 'Beverly'): [('Harold', 'son', 'Pedro'), ('Pedro', 'sister', 'Beverly')]}]
['mother', 'father', 'son', 'sister']