that the pistillode is both a psychology and spartan is not correct.
sent1: the pistillode is not gastroesophageal but it is bottom-up. sent2: the pistillode is spartan. sent3: something that is pediatrics is a psychology. sent4: if the pistillode is not gastroesophageal but bottom-up then it is pediatrics.
sent4 & sent1 -> int1: the pistillode is pediatrics.; sent3 -> int2: the pistillode is a psychology if it is pediatrics.; int1 & int2 -> int3: the pistillode is a psychology.; int3 & sent2 -> hypothesis;
$hypothesis$ = that the pistillode is both a psychology and spartan is not correct. ; $context$ = sent1: the pistillode is not gastroesophageal but it is bottom-up. sent2: the pistillode is spartan. sent3: something that is pediatrics is a psychology. sent4: if the pistillode is not gastroesophageal but bottom-up then it is pediatrics. ; $proof$ = 
sent4 & sent1 -> int1: the pistillode is pediatrics.; sent3 -> int2: the pistillode is a psychology if it is pediatrics.; int1 & int2 -> int3: the pistillode is a psychology.; int3 & sent2 -> hypothesis; __DISPROVED__