[Cindy] had to pick her son [Richard] up from school because the schools' bus was broke down. [Natasha] asked her father [Francisco] if she could spend the night at her friend's house. [Francisco] was delighted to watch his son [Richard] steal third base in the Championship baseball game.
('Natasha', 'Cindy')
[Natasha] asked her father [Francisco] if she could spend the night at her friend's house. [Francisco] was delighted to watch his son [Richard] steal third base in the Championship baseball game. [Cindy] had to pick her son [Richard] up from school because the schools' bus was broke down.
[{('Natasha', 'mother', 'Cindy'): [('Natasha', 'brother', 'Richard'), ('Richard', 'mother', 'Cindy')]}, {('Natasha', 'brother', 'Richard'): [('Natasha', 'father', 'Francisco'), ('Francisco', 'son', 'Richard')]}]
['father', 'son', 'mother']