[David] has been waiting around all day for her son, [Bobby]. [Bobby] and his brother [Michael] just talked on the phone for the first time in years. [Marie]'s mom, [David], has recently taken art classes.
('Marie', 'Michael')
[Marie]'s mom, [David], has recently taken art classes. [David] has been waiting around all day for her son, [Bobby]. [Bobby] and his brother [Michael] just talked on the phone for the first time in years.
[{('Marie', 'brother', 'Michael'): [('Marie', 'brother', 'Bobby'), ('Bobby', 'brother', 'Michael')]}, {('Marie', 'brother', 'Bobby'): [('Marie', 'mother', 'David'), ('David', 'son', 'Bobby')]}]
['mother', 'son', 'brother']