[Francisco] and his son [Wayne] went to the park to look for different kinds of birds. [Leonard] took his Dad [Francisco] to visit his grandmother [Frances]
('Wayne', 'Frances')
[Francisco] and his son [Wayne] went to the park to look for different kinds of birds. [Leonard] took his Dad [Francisco] to visit his grandmother [Frances]
[{('Wayne', 'grandmother', 'Frances'): [('Wayne', 'father', 'Francisco'), ('Francisco', 'mother', 'Frances')]}, {('Francisco', 'mother', 'Frances'): [('Francisco', 'son', 'Leonard'), ('Leonard', 'grandmother', 'Frances')]}]
['father', 'son', 'grandmother']