story: [Michelle] sat anxiously in the airport terminal, waiting to see her son [Paul] walk through the gate. [Paul] was so proud that his son [Jess] won the science fair! [Paul] decided to take his son, [Fletcher], on a ski vacation.
query: ('Michelle', 'Fletcher')
clean_story: [Michelle] sat anxiously in the airport terminal, waiting to see her son [Paul] walk through the gate. [Paul] decided to take his son, [Fletcher], on a ski vacation.
proof_state: [{('Michelle', 'grandson', 'Fletcher'): [('Michelle', 'son', 'Paul'), ('Paul', 'son', 'Fletcher')]}]