[Martha] grew up really close to her sister Rachel. When Rachel had her son [Michael], [Martha] became like a second mom to him. [Michael] bought a book for his father [Jacob].
('Jacob', 'Martha')
[Michael] bought a book for his father [Jacob]. [Martha] grew up really close to her sister Rachel. When Rachel had her son [Michael], [Martha] became like a second mom to him.
[{('Jacob', 'sister', 'Martha'): [('Jacob', 'son', 'Michael'), ('Michael', 'aunt', 'Martha')]}]