[Amy] went on a vacation with her brother [George]. [Michael] was enjoying the delicious meal prepared by his mother [Amy].
('Michael', 'George')
[Michael] was enjoying the delicious meal prepared by his mother [Amy]. [Amy] went on a vacation with her brother [George].
[{('Michael', 'uncle', 'George'): [('Michael', 'mother', 'Amy'), ('Amy', 'brother', 'George')]}]
['mother', 'brother']