[Joshua] bought his daughter [Felicia] and son [Clarence] a gift. [Felicia]'s sister [Andrea] did n't get anything.
('Clarence', 'Andrea')
[Joshua] bought his daughter [Felicia] and son [Clarence] a gift. [Felicia]'s sister [Andrea] did n't get anything.
[{('Clarence', 'sister', 'Andrea'): [('Clarence', 'father', 'Joshua'), ('Joshua', 'daughter', 'Andrea')]}, {('Clarence', 'father', 'Joshua'): [('Clarence', 'sister', 'Felicia'), ('Felicia', 'father', 'Joshua')]}]
['sister', 'father', 'daughter']