[Jeffrey] went to the park with his father, [Pedro]. [Pedro] bought a dress for his daughter [Cheryl]. [Pedro] took his daughter [Cheryl] to school this morning and then stopped by to visit his father [Harold].
('Jeffrey', 'Harold')
[Jeffrey] went to the park with his father, [Pedro]. [Pedro] bought a dress for his daughter [Cheryl]. [Pedro] took his daughter [Cheryl] to school this morning and then stopped by to visit his father [Harold].
[{('Jeffrey', 'grandfather', 'Harold'): [('Jeffrey', 'sister', 'Cheryl'), ('Cheryl', 'grandfather', 'Harold')]}, {('Jeffrey', 'sister', 'Cheryl'): [('Jeffrey', 'father', 'Pedro'), ('Pedro', 'daughter', 'Cheryl')]}, {('Cheryl', 'grandfather', 'Harold'): [('Cheryl', 'father', 'Pedro'), ('Pedro', 'father', 'Harold')]}]
['father', 'daughter', 'father', 'father']