[Don] and his sister [Felicia] were hoping for a snow day. [Lynn] and her daughter [Andrea] went out for ice cream. [Lynn] got a cone and [Andrea] got a sundae. [Lynn]'s mom, [Felicia] got ready for the party.
('Don', 'Andrea')
[Don] and his sister [Felicia] were hoping for a snow day. [Lynn]'s mom, [Felicia] got ready for the party. [Lynn] and her daughter [Andrea] went out for ice cream. [Lynn] got a cone and [Andrea] got a sundae.
[{('Don', 'sister', 'Andrea'): [('Don', 'sister', 'Felicia'), ('Felicia', 'sister', 'Andrea')]}, {('Felicia', 'sister', 'Andrea'): [('Felicia', 'mother', 'Lynn'), ('Lynn', 'daughter', 'Andrea')]}]
['sister', 'mother', 'daughter']