[John] was enjoying the delicious meal prepared by his mother [Marie]. [Marie] told her daughter [Michelle] to wash up. Dinner was ready. [Robert] and his wife, [Marie], needed a new refrigerator. [Marie]'s son, [John], suggested a model, and offered to help them move it in and install it.
('Robert', 'Michelle')
[Robert] and his wife, [Marie], needed a new refrigerator. [Marie]'s son, [John], suggested a model, and offered to help them move it in and install it. [John] was enjoying the delicious meal prepared by his mother [Marie]. [Marie] told her daughter [Michelle] to wash up. Dinner was ready.
[{('Robert', 'daughter', 'Michelle'): [('Robert', 'son', 'John'), ('John', 'sister', 'Michelle')]}, {('John', 'sister', 'Michelle'): [('John', 'mother', 'Marie'), ('Marie', 'daughter', 'Michelle')]}, {('Robert', 'son', 'John'): [('Robert', 'wife', 'Marie'), ('Marie', 'son', 'John')]}]
['wife', 'son', 'mother', 'daughter']