[Hugh] took his brother [Francisco] to get lunch at a local diner. [Lena] went on a vacation with her brother [Francisco]. [Hugh] is a factory worker. He has a wonderful sister by the name of [Lynn].
('Lena', 'Lynn')
[Lena] went on a vacation with her brother [Francisco]. [Hugh] took his brother [Francisco] to get lunch at a local diner. [Hugh] is a factory worker. He has a wonderful sister by the name of [Lynn].
[{('Lena', 'sister', 'Lynn'): [('Lena', 'brother', 'Francisco'), ('Francisco', 'sister', 'Lynn')]}, {('Francisco', 'sister', 'Lynn'): [('Francisco', 'brother', 'Hugh'), ('Hugh', 'sister', 'Lynn')]}]
['brother', 'brother', 'sister']