[Harold] is taking his son [Antonio] out for coffee. [Pedro] went his brother to pick up his brother's daughter [Erika] from a birthday party. [Pedro] likes to go fishing with his sister. Her name is [Marie]. [Antonio] is a man with a daughter named [Erika].
('Harold', 'Marie')
[Harold] is taking his son [Antonio] out for coffee. [Antonio] is a man with a daughter named [Erika]. [Pedro] went his brother to pick up his brother's daughter [Erika] from a birthday party. [Pedro] likes to go fishing with his sister. Her name is [Marie].
[{('Harold', 'daughter', 'Marie'): [('Harold', 'son', 'Pedro'), ('Pedro', 'sister', 'Marie')]}, {('Harold', 'son', 'Pedro'): [('Harold', 'son', 'Antonio'), ('Antonio', 'brother', 'Pedro')]}, {('Antonio', 'brother', 'Pedro'): [('Antonio', 'daughter', 'Erika'), ('Erika', 'uncle', 'Pedro')]}]
['son', 'daughter', 'uncle', 'sister']