story: [Preston] is helping his son study. His name is [Jaime]. [Mack] asked his father [Preston] if he could have a video game and he said okay. [Kerri]'s brother [Mack] and her went to get ice cream.
query: ('Preston', 'Kerri')
clean_story: [Mack] asked his father [Preston] if he could have a video game and he said okay. [Kerri]'s brother [Mack] and her went to get ice cream.
proof_state: [{('Preston', 'daughter', 'Kerri'): [('Preston', 'son', 'Mack'), ('Mack', 'sister', 'Kerri')]}]