[Michael] wanted to play at the park so his mother got her sister, [Lillian], to take him. [Amy] has a son called [Michael]. Each day they go to the park after school.
('Amy', 'Lillian')
[Amy] has a son called [Michael]. Each day they go to the park after school. [Michael] wanted to play at the park so his mother got her sister, [Lillian], to take him.
[{('Amy', 'sister', 'Lillian'): [('Amy', 'son', 'Michael'), ('Michael', 'aunt', 'Lillian')]}]
['son', 'aunt']