[Cindy] took her son [Wayne] to the park for the afternoon. [Natasha] took her brother [Richard] to work Monday because his car was in the shop getting a tune up. [Richard] called his brother [Wayne] on the phone. He wanted to go out for some beers.
('Cindy', 'Natasha')
[Cindy] took her son [Wayne] to the park for the afternoon. [Richard] called his brother [Wayne] on the phone. He wanted to go out for some beers. [Natasha] took her brother [Richard] to work Monday because his car was in the shop getting a tune up.
[{('Cindy', 'daughter', 'Natasha'): [('Cindy', 'son', 'Richard'), ('Richard', 'sister', 'Natasha')]}, {('Cindy', 'son', 'Richard'): [('Cindy', 'son', 'Wayne'), ('Wayne', 'brother', 'Richard')]}]
['son', 'brother', 'sister']