[John] asked his father [Robert] if he could borrow some money. [Marie] asked her mother [Michelle] to get a cake for her sister [Tracy] on her way back home. [Michelle] loves painting with her father. His name is [Robert].
('John', 'Tracy')
[John] asked his father [Robert] if he could borrow some money. [Michelle] loves painting with her father. His name is [Robert]. [Marie] asked her mother [Michelle] to get a cake for her sister [Tracy] on her way back home.
[{('John', 'aunt', 'Tracy'): [('John', 'father', 'Robert'), ('Robert', 'sister', 'Tracy')]}, {('Robert', 'sister', 'Tracy'): [('Robert', 'daughter', 'Michelle'), ('Michelle', 'aunt', 'Tracy')]}, {('Michelle', 'aunt', 'Tracy'): [('Michelle', 'mother', 'Marie'), ('Marie', 'sister', 'Tracy')]}]
['father', 'daughter', 'mother', 'sister']