there exists something such that if it does not marble photocopy then the fact that it is not a hanging is not false.
sent1: something hangs if it does not marble photocopy. sent2: something that does marble photocopy is not a hanging. sent3: there is something such that if it marbles photocopy then it is not a hanging.
$hypothesis$ = there exists something such that if it does not marble photocopy then the fact that it is not a hanging is not false. ; $context$ = sent1: something hangs if it does not marble photocopy. sent2: something that does marble photocopy is not a hanging. sent3: there is something such that if it marbles photocopy then it is not a hanging. ; $proof$ = 
__UNKNOWN__