[Michael] and his wife [Nettie] went to a baseball game today. [Beverly] made chicken noodle soup for her son [Paul]. [Paul]'s brother [Samuel] did n't want to have any. [Nettie] borrowed some money from her brother [Samuel].
('Michael', 'Beverly')
[Michael] and his wife [Nettie] went to a baseball game today. [Nettie] borrowed some money from her brother [Samuel]. [Beverly] made chicken noodle soup for her son [Paul]. [Paul]'s brother [Samuel] did n't want to have any.
[{('Michael', 'mother-in-law', 'Beverly'): [('Michael', 'wife', 'Nettie'), ('Nettie', 'mother', 'Beverly')]}, {('Nettie', 'mother', 'Beverly'): [('Nettie', 'brother', 'Paul'), ('Paul', 'mother', 'Beverly')]}, {('Nettie', 'brother', 'Paul'): [('Nettie', 'brother', 'Samuel'), ('Samuel', 'brother', 'Paul')]}]
['wife', 'brother', 'brother', 'mother']