[Cindy] is so happy for her son. Her son [Richard] just joined the Army. [Richard] hit his brother [Wayne] in the head. [Wayne] and his sister [Carrie] stood in line at the fair.
('Carrie', 'Cindy')
[Wayne] and his sister [Carrie] stood in line at the fair. [Richard] hit his brother [Wayne] in the head. [Cindy] is so happy for her son. Her son [Richard] just joined the Army.
[{('Carrie', 'mother', 'Cindy'): [('Carrie', 'brother', 'Wayne'), ('Wayne', 'mother', 'Cindy')]}, {('Wayne', 'mother', 'Cindy'): [('Wayne', 'brother', 'Richard'), ('Richard', 'mother', 'Cindy')]}]
['brother', 'brother', 'mother']