story: [Fletcher] was playing his sister [Dulce]. Suddenly, [Dulce]'s mother [Nancy] called her to come upstairs right away. [Fletcher] and his sister [Sabrina] love to play video games.
query: ('Fletcher', 'Nancy')
clean_story: [Fletcher] was playing his sister [Dulce]. Suddenly, [Dulce]'s mother [Nancy] called her to come upstairs right away.
proof_state: [{('Fletcher', 'mother', 'Nancy'): [('Fletcher', 'sister', 'Dulce'), ('Dulce', 'mother', 'Nancy')]}]