story: [Mark] and his wife [Carol] really wanted to have a child. Everything they did seemed to not work. They were losing hope. [David]'s father, [Mark], bought him some ice cream. [Richard] tripped his brother [David] in the living room. [Michael] loves to play baseball with his dad, [Mark].
query: ('Richard', 'Michael')
clean_story: [Richard] tripped his brother [David] in the living room. [David]'s father, [Mark], bought him some ice cream. [Michael] loves to play baseball with his dad, [Mark].
proof_state: [{('Richard', 'brother', 'Michael'): [('Richard', 'father', 'Mark'), ('Mark', 'son', 'Michael')]}, {('Richard', 'father', 'Mark'): [('Richard', 'brother', 'David'), ('David', 'father', 'Mark')]}]