[Cleo] and [David] had a picnic at the park. They had sandwiches and salad. [Roy] took his grandson [David] to buy some snacks at the bodega.
('Roy', 'Cleo')
[Roy] took his grandson [David] to buy some snacks at the bodega. [Cleo] and [David] had a picnic at the park. They had sandwiches and salad.
[{('Roy', 'granddaughter', 'Cleo'): [('Roy', 'grandson', 'David'), ('David', 'sister', 'Cleo')]}]