[Dorothy] is taking a trip to see her sister [Tracy]. [Tracy] has been waiting around all day for her son, [Bobby]. [Bobby]'s grandfather, [Harold], just had a birthday. [Bobby] and the rest of the family threw [Harold] a big party. [Pedro] prepared romantic dinner for Valentine's Day for his wife, [Dorothy].
('Pedro', 'Harold')
[Pedro] prepared romantic dinner for Valentine's Day for his wife, [Dorothy]. [Dorothy] is taking a trip to see her sister [Tracy]. [Tracy] has been waiting around all day for her son, [Bobby]. [Bobby]'s grandfather, [Harold], just had a birthday. [Bobby] and the rest of the family threw [Harold] a big party.
[{('Pedro', 'father-in-law', 'Harold'): [('Pedro', 'wife', 'Dorothy'), ('Dorothy', 'father', 'Harold')]}, {('Dorothy', 'father', 'Harold'): [('Dorothy', 'sister', 'Tracy'), ('Tracy', 'father', 'Harold')]}, {('Tracy', 'father', 'Harold'): [('Tracy', 'son', 'Bobby'), ('Bobby', 'grandfather', 'Harold')]}]
['wife', 'sister', 'son', 'grandfather']