[Joshua] and his son [Joseph] were playing football in the backyard. [Lynn], [Joshua]'s wife, called out for them to be careful. [Clarence] and his brother [Joseph] had a fight. They did n't speak to each other for a whole week afterwards.
('Lynn', 'Clarence')
[Joshua] and his son [Joseph] were playing football in the backyard. [Lynn], [Joshua]'s wife, called out for them to be careful. [Clarence] and his brother [Joseph] had a fight. They did n't speak to each other for a whole week afterwards.
[{('Lynn', 'son', 'Clarence'): [('Lynn', 'husband', 'Joshua'), ('Joshua', 'son', 'Clarence')]}, {('Joshua', 'son', 'Clarence'): [('Joshua', 'son', 'Joseph'), ('Joseph', 'brother', 'Clarence')]}]
['husband', 'son', 'brother']