[Richard]'s sister [Carrie] and father [Francisco] helped [Francisco]'s daughter [Anna] change a tire on her car.
('Anna', 'Carrie')
[Richard]'s sister [Carrie] and father [Francisco] helped [Francisco]'s daughter [Anna] change a tire on her car.
[{('Anna', 'sister', 'Carrie'): [('Anna', 'brother', 'Richard'), ('Richard', 'sister', 'Carrie')]}, {('Anna', 'brother', 'Richard'): [('Anna', 'father', 'Francisco'), ('Francisco', 'son', 'Richard')]}]
['father', 'son', 'sister']