[Wayne] called his brother, [Paul], to confirm when [Paul]'s sister, [Nettie], was coming to the dinner. [Samuel] and his sister [Nettie] were painting her house. [Samuel]'s grandfather, [Harold], came over to help.
('Harold', 'Wayne')
[Samuel] and his sister [Nettie] were painting her house. [Samuel]'s grandfather, [Harold], came over to help. [Wayne] called his brother, [Paul], to confirm when [Paul]'s sister, [Nettie], was coming to the dinner.
[{('Harold', 'grandson', 'Wayne'): [('Harold', 'granddaughter', 'Nettie'), ('Nettie', 'brother', 'Wayne')]}, {('Harold', 'granddaughter', 'Nettie'): [('Harold', 'grandson', 'Samuel'), ('Samuel', 'sister', 'Nettie')]}, {('Nettie', 'brother', 'Wayne'): [('Nettie', 'brother', 'Paul'), ('Paul', 'brother', 'Wayne')]}]
['grandson', 'sister', 'brother', 'brother']