[Tracy], [Louis]'s sister, was helping him around the house. Her brother [Pedro] was helping out too. [Louis] likes to take his niece, [Elsie], for walks by the beach. [Robert] 'daughter, [Elsie], just made it into grad school.
('Robert', 'Pedro')
[Robert] 'daughter, [Elsie], just made it into grad school. [Louis] likes to take his niece, [Elsie], for walks by the beach. [Tracy], [Louis]'s sister, was helping him around the house. Her brother [Pedro] was helping out too.
[{('Robert', 'brother', 'Pedro'): [('Robert', 'brother', 'Louis'), ('Louis', 'brother', 'Pedro')]}, {('Louis', 'brother', 'Pedro'): [('Louis', 'sister', 'Tracy'), ('Tracy', 'brother', 'Pedro')]}, {('Robert', 'brother', 'Louis'): [('Robert', 'daughter', 'Elsie'), ('Elsie', 'uncle', 'Louis')]}]
['daughter', 'uncle', 'sister', 'brother']