there exists something such that if it does instrument cover-up the fact that it does instrument varix and it is not dextral does not hold.
sent1: there is something such that if it is a cynancum then the fact that it does mystify furring and does not instrument slasher is incorrect. sent2: if something is basidial then the fact that it instruments cover-up and is not a cooperative is wrong. sent3: the fact that the photosphere is a cookstove that does not instrument cover-up is not true if it is neoplastic. sent4: that the keyhole is sexual but not agrypnotic is not correct if it instruments Halifax. sent5: the keyhole instruments varix and is not dextral if that it instruments cover-up is not false. sent6: there exists something such that if the fact that it is an abbe is not incorrect that it is a Balinese and it is not a Megadermatidae is not true. sent7: the fact that the keyhole integrates photosphere but it is not dextral does not hold if it integrates Seminole. sent8: if the keyhole instruments varix that it does mystify stunt and is not a kind of a charger is incorrect. sent9: there exists something such that if it is a kind of a farmyard then the fact that that it is ultramontane and it does not integrate solid is true does not hold. sent10: that the solid is gerundial but it is not a kind of a oxidation-reduction is false if it is a handmaid. sent11: there exists something such that if the fact that it is a kind of a backsword is not wrong then that it is a kind of an arranger and it is not a Cordylidae is wrong. sent12: if the keyhole does instrument cover-up then the fact that it instruments varix and it is not dextral does not hold. sent13: there is something such that if it instruments cover-up then the fact that it instruments varix and is dextral is not true. sent14: there is something such that if it does instrument cover-up it instruments varix and it is non-dextral. sent15: there exists something such that if that it is an oboe is right the fact that it is an arranger and it is not a ultramontane is incorrect. sent16: the fact that the keyhole instruments varix and it is dextral is wrong if it does instrument cover-up. sent17: the fact that the keyhole does sight but it does not instrument varix is wrong if the fact that it is fiscal is right. sent18: there exists something such that if it is stabling then the fact that it is Chechen and it is not micrometeoritic is not true.
sent12 -> hypothesis;
if the ebb is basidial that it does instrument cover-up and is not a cooperative is incorrect.
sent2 -> hypothesis;
$hypothesis$ = there exists something such that if it does instrument cover-up the fact that it does instrument varix and it is not dextral does not hold. ; $context$ = sent1: there is something such that if it is a cynancum then the fact that it does mystify furring and does not instrument slasher is incorrect. sent2: if something is basidial then the fact that it instruments cover-up and is not a cooperative is wrong. sent3: the fact that the photosphere is a cookstove that does not instrument cover-up is not true if it is neoplastic. sent4: that the keyhole is sexual but not agrypnotic is not correct if it instruments Halifax. sent5: the keyhole instruments varix and is not dextral if that it instruments cover-up is not false. sent6: there exists something such that if the fact that it is an abbe is not incorrect that it is a Balinese and it is not a Megadermatidae is not true. sent7: the fact that the keyhole integrates photosphere but it is not dextral does not hold if it integrates Seminole. sent8: if the keyhole instruments varix that it does mystify stunt and is not a kind of a charger is incorrect. sent9: there exists something such that if it is a kind of a farmyard then the fact that that it is ultramontane and it does not integrate solid is true does not hold. sent10: that the solid is gerundial but it is not a kind of a oxidation-reduction is false if it is a handmaid. sent11: there exists something such that if the fact that it is a kind of a backsword is not wrong then that it is a kind of an arranger and it is not a Cordylidae is wrong. sent12: if the keyhole does instrument cover-up then the fact that it instruments varix and it is not dextral does not hold. sent13: there is something such that if it instruments cover-up then the fact that it instruments varix and is dextral is not true. sent14: there is something such that if it does instrument cover-up it instruments varix and it is non-dextral. sent15: there exists something such that if that it is an oboe is right the fact that it is an arranger and it is not a ultramontane is incorrect. sent16: the fact that the keyhole instruments varix and it is dextral is wrong if it does instrument cover-up. sent17: the fact that the keyhole does sight but it does not instrument varix is wrong if the fact that it is fiscal is right. sent18: there exists something such that if it is stabling then the fact that it is Chechen and it is not micrometeoritic is not true. ; $proof$ = 
sent12 -> hypothesis; __PROVED__