[Marie] misses her father [Harold] when she is at school. [John] asked his mother, [Marie], to bake him a cake. She told him to wait for his birthday. [Robert] went to the baseball game with his son [John] [Robert] wanted his son, [Allan], to go fishing with him.
('Allan', 'Harold')
[Robert] wanted his son, [Allan], to go fishing with him. [Robert] went to the baseball game with his son [John] [John] asked his mother, [Marie], to bake him a cake. She told him to wait for his birthday. [Marie] misses her father [Harold] when she is at school.
[{('Allan', 'grandfather', 'Harold'): [('Allan', 'mother', 'Marie'), ('Marie', 'father', 'Harold')]}, {('Allan', 'mother', 'Marie'): [('Allan', 'brother', 'John'), ('John', 'mother', 'Marie')]}, {('Allan', 'brother', 'John'): [('Allan', 'father', 'Robert'), ('Robert', 'son', 'John')]}]
['father', 'son', 'mother', 'father']