[Jeff] and his brother [Robert] love swimming in the lake by there house. [Robert], however, hates when his mom makes him bring his sister [Louise] along.
('Jeff', 'Louise')
[Jeff] and his brother [Robert] love swimming in the lake by there house. [Robert], however, hates when his mom makes him bring his sister [Louise] along.
[{('Jeff', 'sister', 'Louise'): [('Jeff', 'brother', 'Robert'), ('Robert', 'sister', 'Louise')]}]
['brother', 'sister']