[Robert] took his daughter [Elsie] to the bookstore, and bought her some books from her favorite author. [Marie] took her son [Allan] and daughter [Elsie] to the grocery store during her day off. [Louis] always looked up to his brother [Robert].
('Louis', 'Allan')
[Louis] always looked up to his brother [Robert]. [Robert] took his daughter [Elsie] to the bookstore, and bought her some books from her favorite author. [Marie] took her son [Allan] and daughter [Elsie] to the grocery store during her day off.
[{('Louis', 'nephew', 'Allan'): [('Louis', 'brother', 'Robert'), ('Robert', 'son', 'Allan')]}, {('Robert', 'son', 'Allan'): [('Robert', 'daughter', 'Elsie'), ('Elsie', 'brother', 'Allan')]}, {('Elsie', 'brother', 'Allan'): [('Elsie', 'mother', 'Marie'), ('Marie', 'son', 'Allan')]}]
['brother', 'daughter', 'mother', 'son']