[Pedro] likes to take his niece, [Emma], for walks by the beach. [Robert] and his sister, [Tracy], planned a birthday party for [Tracy]'s daughter, [Emma]. [Shantel] was invited to the party by her son, [Robert].
('Shantel', 'Pedro')
[Robert] and his sister, [Tracy], planned a birthday party for [Tracy]'s daughter, [Emma]. [Shantel] was invited to the party by her son, [Robert]. [Pedro] likes to take his niece, [Emma], for walks by the beach.
[{('Shantel', 'son', 'Pedro'): [('Shantel', 'daughter', 'Tracy'), ('Tracy', 'brother', 'Pedro')]}, {('Tracy', 'brother', 'Pedro'): [('Tracy', 'daughter', 'Emma'), ('Emma', 'uncle', 'Pedro')]}, {('Shantel', 'daughter', 'Tracy'): [('Shantel', 'son', 'Robert'), ('Robert', 'sister', 'Tracy')]}]
['son', 'sister', 'daughter', 'uncle']