[Tony] and his sister [Charlotte] went to the ice skating rink. [Tony] fell down and [Charlotte] laughed at him. [Ashley] spent the day with her grandson [Tony]. They had a good time watching movies.
('Ashley', 'Charlotte')
[Ashley] spent the day with her grandson [Tony]. They had a good time watching movies. [Tony] and his sister [Charlotte] went to the ice skating rink. [Tony] fell down and [Charlotte] laughed at him.
[{('Ashley', 'granddaughter', 'Charlotte'): [('Ashley', 'grandson', 'Tony'), ('Tony', 'sister', 'Charlotte')]}]
['grandson', 'sister']