[Frances] took her son [Hugh] to the park. [Chris] did n't think his dad, [Wesley] had time to help with homework. [Wesley] was busy fixing his brother [Hugh]'s truck.
('Chris', 'Frances')
[Chris] did n't think his dad, [Wesley] had time to help with homework. [Wesley] was busy fixing his brother [Hugh]'s truck. [Frances] took her son [Hugh] to the park.
[{('Chris', 'grandmother', 'Frances'): [('Chris', 'father', 'Wesley'), ('Wesley', 'mother', 'Frances')]}, {('Wesley', 'mother', 'Frances'): [('Wesley', 'brother', 'Hugh'), ('Hugh', 'mother', 'Frances')]}]
['father', 'brother', 'mother']