[Lizzie] is watching t.v. with her mother [Marie], and her brother [Mario] wants icecream. [John] and his brother [Ronald] wanted to go to the arcade. [Ronald] asked his mother, [Marie], if they could, and she said yes.
('John', 'Mario')
[John] and his brother [Ronald] wanted to go to the arcade. [Ronald] asked his mother, [Marie], if they could, and she said yes. [Lizzie] is watching t.v. with her mother [Marie], and her brother [Mario] wants icecream.
[{('John', 'brother', 'Mario'): [('John', 'mother', 'Marie'), ('Marie', 'son', 'Mario')]}, {('John', 'mother', 'Marie'): [('John', 'brother', 'Ronald'), ('Ronald', 'mother', 'Marie')]}, {('Marie', 'son', 'Mario'): [('Marie', 'daughter', 'Lizzie'), ('Lizzie', 'brother', 'Mario')]}]
['brother', 'mother', 'daughter', 'brother']