either something is a Pyrrhula or it is outboard or both.
sent1: if the hairpin does palatalize much then the sander is outboard. sent2: that the niobium is not a reassurance is right. sent3: if the niobium is not a kind of a reassurance then the hairpin does palatalize qadi and palatalizes much.
sent3 & sent2 -> int1: the hairpin does palatalize qadi and palatalizes much.; int1 -> int2: the hairpin palatalizes much.; sent1 & int2 -> int3: the sander is a kind of an outboard.; int3 -> int4: the sander is a kind of a Pyrrhula or it is an outboard or both.; int4 -> hypothesis;
$hypothesis$ = either something is a Pyrrhula or it is outboard or both. ; $context$ = sent1: if the hairpin does palatalize much then the sander is outboard. sent2: that the niobium is not a reassurance is right. sent3: if the niobium is not a kind of a reassurance then the hairpin does palatalize qadi and palatalizes much. ; $proof$ = 
sent3 & sent2 -> int1: the hairpin does palatalize qadi and palatalizes much.; int1 -> int2: the hairpin palatalizes much.; sent1 & int2 -> int3: the sander is a kind of an outboard.; int3 -> int4: the sander is a kind of a Pyrrhula or it is an outboard or both.; int4 -> hypothesis; __PROVED__