the fact that there exists something such that if it is not unmanageable then it is not a biplane and does quieten clinometer is false.
sent1: if the pistil is manageable then it is not a kind of a biplane and quietens clinometer.
sent1 -> hypothesis;
$hypothesis$ = the fact that there exists something such that if it is not unmanageable then it is not a biplane and does quieten clinometer is false. ; $context$ = sent1: if the pistil is manageable then it is not a kind of a biplane and quietens clinometer. ; $proof$ = 
sent1 -> hypothesis; __DISPROVED__