the winch is a exanthem.
sent1: there is something such that it is not a kind of a Deneb. sent2: if that the plank does not confine pup and is not a kind of a Pakistani is not false then the winch is not a exanthem. sent3: the plank does not confine pup and it is not a Pakistani if that something is not a Deneb is not incorrect.
sent1 & sent3 -> int1: the plank does not confine pup and it is not a kind of a Pakistani.; sent2 & int1 -> hypothesis;
$hypothesis$ = the winch is a exanthem. ; $context$ = sent1: there is something such that it is not a kind of a Deneb. sent2: if that the plank does not confine pup and is not a kind of a Pakistani is not false then the winch is not a exanthem. sent3: the plank does not confine pup and it is not a Pakistani if that something is not a Deneb is not incorrect. ; $proof$ = 
sent1 & sent3 -> int1: the plank does not confine pup and it is not a kind of a Pakistani.; sent2 & int1 -> hypothesis; __DISPROVED__