[David] kept insulting her brother [Francisco]. [Francisco] got tired of it, so he told his mother [Frances] to tell her to stop it. [Michael] gave his mother [David] flowers on her birthday.
('Michael', 'Frances')
[Michael] gave his mother [David] flowers on her birthday. [David] kept insulting her brother [Francisco]. [Francisco] got tired of it, so he told his mother [Frances] to tell her to stop it.
[{('Michael', 'grandmother', 'Frances'): [('Michael', 'mother', 'David'), ('David', 'mother', 'Frances')]}, {('David', 'mother', 'Frances'): [('David', 'brother', 'Francisco'), ('Francisco', 'mother', 'Frances')]}]
['mother', 'brother', 'mother']