[Roy] took his grandson [Brent] to the store to buy some new books. [Brent] and his sister [Ann] went to brunch today at the new diner.
('Ann', 'Roy')
[Brent] and his sister [Ann] went to brunch today at the new diner. [Roy] took his grandson [Brent] to the store to buy some new books.
[{('Ann', 'grandfather', 'Roy'): [('Ann', 'brother', 'Brent'), ('Brent', 'grandfather', 'Roy')]}]