[John] took his daughter [Ann] to ballet class. [John] and his sister [Constance] went to the movies to watch the newest superhero flick.
('Ann', 'Constance')
[John] took his daughter [Ann] to ballet class. [John] and his sister [Constance] went to the movies to watch the newest superhero flick.
[{('Ann', 'aunt', 'Constance'): [('Ann', 'father', 'John'), ('John', 'sister', 'Constance')]}]