[Antonio] went to pick up his daughter [Erika] from school on the last day before summer vacation. [Antonio] took his brother [Louis] to get lunch at a local diner. [Erika] has a wonderful relationship with her uncle [Robert]. [Louis] and [Pedro] are brothers who look nothing alike.
('Pedro', 'Robert')
[Louis] and [Pedro] are brothers who look nothing alike. [Antonio] took his brother [Louis] to get lunch at a local diner. [Antonio] went to pick up his daughter [Erika] from school on the last day before summer vacation. [Erika] has a wonderful relationship with her uncle [Robert].
[{('Pedro', 'brother', 'Robert'): [('Pedro', 'brother', 'Louis'), ('Louis', 'brother', 'Robert')]}, {('Louis', 'brother', 'Robert'): [('Louis', 'brother', 'Antonio'), ('Antonio', 'brother', 'Robert')]}, {('Antonio', 'brother', 'Robert'): [('Antonio', 'daughter', 'Erika'), ('Erika', 'uncle', 'Robert')]}]
['brother', 'brother', 'daughter', 'uncle']