[Pedro] and his sister [Tracy] were hoping for a snow day. [Harold]'s daughter, [Dorothy], is having some trouble. Her son, [Jerome], is n't doing well in school. [Jerome] went to the park with his father, [Pedro].
('Harold', 'Tracy')
[Harold]'s daughter, [Dorothy], is having some trouble. Her son, [Jerome], is n't doing well in school. [Jerome] went to the park with his father, [Pedro]. [Pedro] and his sister [Tracy] were hoping for a snow day.
[{('Harold', 'daughter', 'Tracy'): [('Harold', 'daughter', 'Dorothy'), ('Dorothy', 'sister', 'Tracy')]}, {('Dorothy', 'sister', 'Tracy'): [('Dorothy', 'son', 'Jerome'), ('Jerome', 'aunt', 'Tracy')]}, {('Jerome', 'aunt', 'Tracy'): [('Jerome', 'father', 'Pedro'), ('Pedro', 'sister', 'Tracy')]}]
['daughter', 'son', 'father', 'sister']