there exists something such that if it does cope paramecium then it is both not potential and not a department.
sent1: There exists nothing that is not a lowerclassman but useless.
$hypothesis$ = there exists something such that if it does cope paramecium then it is both not potential and not a department. ; $context$ = sent1: There exists nothing that is not a lowerclassman but useless. ; $proof$ = 
__UNKNOWN__