[Marie]'s daughter [Michelle] and [Marie]'s son [John] are planning a surprise birthday party for her. [Elsie] does n't like having to babysit her younger brother, [John]. [Allan] and his sister [Elsie] were twins. Still, they did n't look very much alike.
('Allan', 'Michelle')
[Allan] and his sister [Elsie] were twins. Still, they did n't look very much alike. [Elsie] does n't like having to babysit her younger brother, [John]. [Marie]'s daughter [Michelle] and [Marie]'s son [John] are planning a surprise birthday party for her.
[{('Allan', 'sister', 'Michelle'): [('Allan', 'brother', 'John'), ('John', 'sister', 'Michelle')]}, {('Allan', 'brother', 'John'): [('Allan', 'sister', 'Elsie'), ('Elsie', 'brother', 'John')]}, {('John', 'sister', 'Michelle'): [('John', 'mother', 'Marie'), ('Marie', 'daughter', 'Michelle')]}]
['sister', 'brother', 'mother', 'daughter']