story: [Michelle] asked her grandmother [Sandra] to help her tie her shoes. [Sandra] told her she was old enough to do it on her own. [Eustolia] does n't like having to babysit her younger brother, [Stacy]. [Michelle] and [Eustolia] are sisters who have one brother named [Erik].
query: ('Eustolia', 'Sandra')
clean_story: [Michelle] and [Eustolia] are sisters who have one brother named [Erik]. [Michelle] asked her grandmother [Sandra] to help her tie her shoes. [Sandra] told her she was old enough to do it on her own.
proof_state: [{('Eustolia', 'grandmother', 'Sandra'): [('Eustolia', 'sister', 'Michelle'), ('Michelle', 'grandmother', 'Sandra')]}, {('Eustolia', 'sister', 'Michelle'): [('Eustolia', 'brother', 'Erik'), ('Erik', 'sister', 'Michelle')]}]