story: [Preston] is frustrated teaching his son how to drive. His son is [Brian]. [Edward] loves to play baseball with his dad, [Preston]. [Michelle]'s son, [Preston], went with her to the store to buy candy for Halloween.
query: ('Michelle', 'Edward')
clean_story: [Michelle]'s son, [Preston], went with her to the store to buy candy for Halloween. [Edward] loves to play baseball with his dad, [Preston].
proof_state: [{('Michelle', 'grandson', 'Edward'): [('Michelle', 'son', 'Preston'), ('Preston', 'son', 'Edward')]}]