[Johnson]'s mother [David] told [David] that her mother [Frances] is sick in the hospital. [Hugh] took his son [Johnson] for boxing lessons. He felt the boy needed to toughen up.
('Hugh', 'Frances')
[Hugh] took his son [Johnson] for boxing lessons. He felt the boy needed to toughen up. [Johnson]'s mother [David] told [David] that her mother [Frances] is sick in the hospital.
[{('Hugh', 'mother', 'Frances'): [('Hugh', 'son', 'Johnson'), ('Johnson', 'grandmother', 'Frances')]}, {('Johnson', 'grandmother', 'Frances'): [('Johnson', 'mother', 'David'), ('David', 'mother', 'Frances')]}]
['son', 'mother', 'mother']