story: [Vincent] bought a new paint set for his sister [Aida]. [Aida] wanted to paint a picture for her grandfather [Jason].
query: ('Jason', 'Vincent')
clean_story: [Vincent] bought a new paint set for his sister [Aida]. [Aida] wanted to paint a picture for her grandfather [Jason].
proof_state: [{('Jason', 'grandson', 'Vincent'): [('Jason', 'granddaughter', 'Aida'), ('Aida', 'brother', 'Vincent')]}]