there exists something such that if it is a kind of non-changeable a stacte it does not scourge screwtop.
sent1: the whizbang does not scourge screwtop if it is both changeable and a stacte.
$hypothesis$ = there exists something such that if it is a kind of non-changeable a stacte it does not scourge screwtop. ; $context$ = sent1: the whizbang does not scourge screwtop if it is both changeable and a stacte. ; $proof$ = 
__UNKNOWN__