[Marie]'s brothers, [Antonio] and [Pedro], took [Pedro]'s son [James] to the football game. [Antonio] is [Louis]'s Brother.
('Louis', 'James')
[Antonio] is [Louis]'s Brother. [Marie]'s brothers, [Antonio] and [Pedro], took [Pedro]'s son [James] to the football game.
[{('Louis', 'nephew', 'James'): [('Louis', 'brother', 'Pedro'), ('Pedro', 'son', 'James')]}, {('Louis', 'brother', 'Pedro'): [('Louis', 'sister', 'Marie'), ('Marie', 'brother', 'Pedro')]}, {('Louis', 'sister', 'Marie'): [('Louis', 'brother', 'Antonio'), ('Antonio', 'sister', 'Marie')]}]
['brother', 'sister', 'brother', 'son']