there exists something such that if the fact that it is not a walkabout and is not Manchurian is not correct then it does not tunnel boil.
sent1: the plumb is jihadi if that it does not finance and it is not a kind of a straight is wrong. sent2: if the MArch is not a kind of a walkabout and is not Manchurian it does not tunnel boil. sent3: there exists something such that if that it is not a walkabout and it is Manchurian does not hold it does not tunnel boil. sent4: if that the MArch is not a walkabout and it is not Manchurian does not hold it does not tunnel boil. sent5: there is something such that if the fact that it is not a aloneness and it is not bimetallistic is not true then the fact that it is nonruminant is correct. sent6: the fact that there exists something such that if it is a kind of a walkabout then it does not tunnel boil hold. sent7: there is something such that if the fact that it is both not a walkabout and not Manchurian is not right then it tunnels boil.
sent4 -> hypothesis;
$hypothesis$ = there exists something such that if the fact that it is not a walkabout and is not Manchurian is not correct then it does not tunnel boil. ; $context$ = sent1: the plumb is jihadi if that it does not finance and it is not a kind of a straight is wrong. sent2: if the MArch is not a kind of a walkabout and is not Manchurian it does not tunnel boil. sent3: there exists something such that if that it is not a walkabout and it is Manchurian does not hold it does not tunnel boil. sent4: if that the MArch is not a walkabout and it is not Manchurian does not hold it does not tunnel boil. sent5: there is something such that if the fact that it is not a aloneness and it is not bimetallistic is not true then the fact that it is nonruminant is correct. sent6: the fact that there exists something such that if it is a kind of a walkabout then it does not tunnel boil hold. sent7: there is something such that if the fact that it is both not a walkabout and not Manchurian is not right then it tunnels boil. ; $proof$ = 
sent4 -> hypothesis; __PROVED__