[Tracy] and her father [Harold] went to the park. They had a wonderful time there, feeding the ducks. [Antonio] is helping his son study. His name is [Bobby]. [Tracy] took her daughter, [Erika], to lunch. [Bobby] took his sister [Erika] to the movies with him to see the new Star Wars film.
('Antonio', 'Harold')
[Antonio] is helping his son study. His name is [Bobby]. [Bobby] took his sister [Erika] to the movies with him to see the new Star Wars film. [Tracy] took her daughter, [Erika], to lunch. [Tracy] and her father [Harold] went to the park. They had a wonderful time there, feeding the ducks.
[{('Antonio', 'father', 'Harold'): [('Antonio', 'son', 'Bobby'), ('Bobby', 'grandfather', 'Harold')]}, {('Bobby', 'grandfather', 'Harold'): [('Bobby', 'mother', 'Tracy'), ('Tracy', 'father', 'Harold')]}, {('Bobby', 'mother', 'Tracy'): [('Bobby', 'sister', 'Erika'), ('Erika', 'mother', 'Tracy')]}]
['son', 'sister', 'mother', 'father']