[John] and his daughter [Ann] go to the beach every year. They always have an amazing time. [Ann] was pleased to receive a birthday card from her grandmother, [Mary].
('John', 'Mary')
[John] and his daughter [Ann] go to the beach every year. They always have an amazing time. [Ann] was pleased to receive a birthday card from her grandmother, [Mary].
[{('John', 'mother', 'Mary'): [('John', 'daughter', 'Ann'), ('Ann', 'grandmother', 'Mary')]}]