that there is something such that if it is a pest then the fact that it is not a kind of a Woolf and/or it is not Hispaniolan does not hold is not correct.
sent1: there is something such that if it is a pest it is Hispaniolan. sent2: the fact that the dessert is not a Woolf or not Hispaniolan or both is not correct if it is a pest. sent3: there is something such that if it is trophic it is a duet. sent4: the dessert is Rousseauan if it is a kind of a Woolf. sent5: there exists something such that if it is a pest then that it is not a kind of a Woolf or it is Hispaniolan or both is not true.
sent2 -> hypothesis;
$hypothesis$ = that there is something such that if it is a pest then the fact that it is not a kind of a Woolf and/or it is not Hispaniolan does not hold is not correct. ; $context$ = sent1: there is something such that if it is a pest it is Hispaniolan. sent2: the fact that the dessert is not a Woolf or not Hispaniolan or both is not correct if it is a pest. sent3: there is something such that if it is trophic it is a duet. sent4: the dessert is Rousseauan if it is a kind of a Woolf. sent5: there exists something such that if it is a pest then that it is not a kind of a Woolf or it is Hispaniolan or both is not true. ; $proof$ = 
sent2 -> hypothesis; __DISPROVED__