story: [David] asked his father, [Dwight], to help him with his math homework. [Dwight] could n't, because he was lousy at math himself. [Dwight]'s son [Scott] entered rehab for the ninth time at the age of thirty.
query: ('David', 'Scott')
clean_story: [David] asked his father, [Dwight], to help him with his math homework. [Dwight] could n't, because he was lousy at math himself. [Dwight]'s son [Scott] entered rehab for the ninth time at the age of thirty.
proof_state: [{('David', 'brother', 'Scott'): [('David', 'father', 'Dwight'), ('Dwight', 'son', 'Scott')]}]