there is something such that if it does labor enthalpy the fact that it is not a steward and it rehabilitates Speaker is not correct.
sent1: if the American is regretful it is not a Donatist and it is a kind of a Spartan. sent2: the pinnacle does not chasten famotidine but it is a Gordius if it is a kind of a cockscomb. sent3: if the fact that the American labors enthalpy is not incorrect then the fact that it is not a steward and it rehabilitates Speaker is wrong. sent4: there exists something such that if it is deconstructionist the fact that it rehabilitates uropathy and is a Tyrannidae is false.
sent3 -> hypothesis;
$hypothesis$ = there is something such that if it does labor enthalpy the fact that it is not a steward and it rehabilitates Speaker is not correct. ; $context$ = sent1: if the American is regretful it is not a Donatist and it is a kind of a Spartan. sent2: the pinnacle does not chasten famotidine but it is a Gordius if it is a kind of a cockscomb. sent3: if the fact that the American labors enthalpy is not incorrect then the fact that it is not a steward and it rehabilitates Speaker is wrong. sent4: there exists something such that if it is deconstructionist the fact that it rehabilitates uropathy and is a Tyrannidae is false. ; $proof$ = 
sent3 -> hypothesis; __PROVED__