[Don] and his brother [Joseph] went out for lunch. [Don] had a burger, and [Joseph] had a chicken sandwich. [David] and her brother [Joshua] got into a fight. [Don], [Joshua]'s son, stopped speaking to both of them because of it.
('David', 'Joseph')
[David] and her brother [Joshua] got into a fight. [Don], [Joshua]'s son, stopped speaking to both of them because of it. [Don] and his brother [Joseph] went out for lunch. [Don] had a burger, and [Joseph] had a chicken sandwich.
[{('David', 'nephew', 'Joseph'): [('David', 'brother', 'Joshua'), ('Joshua', 'son', 'Joseph')]}, {('Joshua', 'son', 'Joseph'): [('Joshua', 'son', 'Don'), ('Don', 'brother', 'Joseph')]}]
['brother', 'son', 'brother']