[Lillian] is taking her son [Timothy] to the park. [Douglas], [Timothy]'s brother, is working at his part time job today.
('Douglas', 'Lillian')
[Lillian] is taking her son [Timothy] to the park. [Douglas], [Timothy]'s brother, is working at his part time job today.
[{('Douglas', 'mother', 'Lillian'): [('Douglas', 'brother', 'Timothy'), ('Timothy', 'mother', 'Lillian')]}]
['brother', 'mother']