[Bobby] and his sister [Evangeline] went to the park. [Gloria] took her sister [Evangeline] out for dinner to celebrate her birthday. [Frances] spent the day with her grandson [Bobby]. They had a good time watching movies.
('Frances', 'Gloria')
[Frances] spent the day with her grandson [Bobby]. They had a good time watching movies. [Bobby] and his sister [Evangeline] went to the park. [Gloria] took her sister [Evangeline] out for dinner to celebrate her birthday.
[{('Frances', 'granddaughter', 'Gloria'): [('Frances', 'grandson', 'Bobby'), ('Bobby', 'sister', 'Gloria')]}, {('Bobby', 'sister', 'Gloria'): [('Bobby', 'sister', 'Evangeline'), ('Evangeline', 'sister', 'Gloria')]}]
['grandson', 'sister', 'sister']