[Charles] asked his grandmother [Frances] for a cookie. [Frances] smiled and said yes. [Wesley] watched his daughter [Martha] playing basketball. [Martha] threw the ball to her brother [Charles] who made the basket.
('Wesley', 'Frances')
[Wesley] watched his daughter [Martha] playing basketball. [Martha] threw the ball to her brother [Charles] who made the basket. [Charles] asked his grandmother [Frances] for a cookie. [Frances] smiled and said yes.
[{('Wesley', 'mother', 'Frances'): [('Wesley', 'son', 'Charles'), ('Charles', 'grandmother', 'Frances')]}, {('Wesley', 'son', 'Charles'): [('Wesley', 'daughter', 'Martha'), ('Martha', 'brother', 'Charles')]}]
['daughter', 'brother', 'grandmother']