story: [Melvin] played basketball with his brother [Felix]. [Georgina] loves cooking for her son. His name is [Melvin] [Mark] played golf with his father [Jacob] and his son [Melvin].
clean_story: [Georgina] loves cooking for her son. His name is [Melvin] [Mark] played golf with his father [Jacob] and his son [Melvin].
proof_state: [{('Georgina', 'father', 'Jacob'): [('Georgina', 'son', 'Melvin'), ('Melvin', 'grandfather', 'Jacob')]}, {('Melvin', 'grandfather', 'Jacob'): [('Melvin', 'father', 'Mark'), ('Mark', 'father', 'Jacob')]}]