[Leonard] was playing football with his brother, [Richard]. [Leonard]'s brother, [Wayne], had a broken leg and could only watch. [Frances] bought her grandson [Richard] a video game that he had been wanting and he thanked her with a big hug.
('Wayne', 'Frances')
[Leonard] was playing football with his brother, [Richard]. [Leonard]'s brother, [Wayne], had a broken leg and could only watch. [Frances] bought her grandson [Richard] a video game that he had been wanting and he thanked her with a big hug.
[{('Wayne', 'grandmother', 'Frances'): [('Wayne', 'brother', 'Leonard'), ('Leonard', 'grandmother', 'Frances')]}, {('Leonard', 'grandmother', 'Frances'): [('Leonard', 'brother', 'Richard'), ('Richard', 'grandmother', 'Frances')]}]
['brother', 'brother', 'grandmother']