story: [Paul] who is [Robert]'s father grounded [Robert] after finding out what [Robert] had done at school. [Melissa] was trying to call her brother [Paul]. He was busy taking care of his son [Fletcher], so he did n't hear the phone ringing.
query: ('Melissa', 'Fletcher')
clean_story: [Melissa] was trying to call her brother [Paul]. He was busy taking care of his son [Fletcher], so he did n't hear the phone ringing.
proof_state: [{('Melissa', 'nephew', 'Fletcher'): [('Melissa', 'brother', 'Paul'), ('Paul', 'son', 'Fletcher')]}]