story: [Alma] is taking her brother [Christopher] out for ice cream. [Anna] is looking forward to having dinner with her dad [Christopher].
query: ('Alma', 'Anna')
clean_story: [Alma] is taking her brother [Christopher] out for ice cream. [Anna] is looking forward to having dinner with her dad [Christopher].
proof_state: [{('Alma', 'niece', 'Anna'): [('Alma', 'brother', 'Christopher'), ('Christopher', 'daughter', 'Anna')]}]