[Amy] decided to take her son [Dennis] out to have Mexican food for Dinner. [Dennis] enjoyed spending time with his mother. [Amy] took her daughter, [Mary], out to High Tea yesterday afternoon.
('Dennis', 'Mary')
[Amy] decided to take her son [Dennis] out to have Mexican food for Dinner. [Dennis] enjoyed spending time with his mother. [Amy] took her daughter, [Mary], out to High Tea yesterday afternoon.
[{('Dennis', 'sister', 'Mary'): [('Dennis', 'mother', 'Amy'), ('Amy', 'daughter', 'Mary')]}]
['mother', 'daughter']