[Wesley] was so excited to give his mother, [Frances], a really nice card for Mother's Day. He loves her very much. [Lena] sat anxiously in the airport terminal, waiting to see her son [Chris] walk through the gate. [Wesley] and his son [Chris] went to the park to look for different kinds of birds.
('Lena', 'Frances')
[Lena] sat anxiously in the airport terminal, waiting to see her son [Chris] walk through the gate. [Wesley] and his son [Chris] went to the park to look for different kinds of birds. [Wesley] was so excited to give his mother, [Frances], a really nice card for Mother's Day. He loves her very much.
[{('Lena', 'mother', 'Frances'): [('Lena', 'son', 'Chris'), ('Chris', 'grandmother', 'Frances')]}, {('Chris', 'grandmother', 'Frances'): [('Chris', 'father', 'Wesley'), ('Wesley', 'mother', 'Frances')]}]
['son', 'father', 'mother']