the fact that there exists something such that if it attitudinizes it photosensitizes Liederkranz is not true.
sent1: if the Liederkranz does attitudinize then it photosensitizes Liederkranz.
sent1 -> hypothesis;
$hypothesis$ = the fact that there exists something such that if it attitudinizes it photosensitizes Liederkranz is not true. ; $context$ = sent1: if the Liederkranz does attitudinize then it photosensitizes Liederkranz. ; $proof$ = 
sent1 -> hypothesis; __DISPROVED__