the fact that if the wally is the second and ascertains switch-hitter then the wally does not ascertain Jayshullah is wrong.
sent1: the wally is not a kind of a Hanoverian if it ascertains switch-hitter and it does fowl impeachment. sent2: something is a kind of an airhead if it is brassy and is noxious. sent3: if the wally ascertains cowbarn and is a flatterer then it does not reflectorize plonk. sent4: if something does reflectorize battering and it is a Tyrannus it is not a triazolam. sent5: if the wally does pigment corn and does precipitate it does not ascertain Jayshullah. sent6: if something that does ascertain lingerie does ascertain fob then it is not a Hupa. sent7: the wally does ascertain Jayshullah if it is second and ascertains switch-hitter. sent8: if the switch-hitter does reflectorize battering and it is noxious it does not reflectorize polyelectrolyte. sent9: that if the wally does ascertain paneling and it is the prospectus then the wally ascertains Jayshullah is true. sent10: if the godparent is a kind of a IFC and it is leaden then it is not a second. sent11: the wally is a kind of a vicegerent if it is a kind of a second and it does pigment fives. sent12: if a second does ascertain switch-hitter it does not ascertain Jayshullah. sent13: the wally does not pigment groschen if it reflectorizes antifeminist and it ascertains Jayshullah. sent14: the wally does not ascertain Jayshullah if it does pigment drippiness and plaits. sent15: a geometry that is nonspatial is Hanoverian. sent16: the wally is not a second if it is a Tyrannus and it reflectorizes Adelie. sent17: if the wally is a scalability and it is neurobiological it does fowl wally. sent18: something that does second and does ascertain switch-hitter ascertains Jayshullah. sent19: something that does pigment fives and repossesses is a Audubon.
sent12 -> hypothesis;
$hypothesis$ = the fact that if the wally is the second and ascertains switch-hitter then the wally does not ascertain Jayshullah is wrong. ; $context$ = sent1: the wally is not a kind of a Hanoverian if it ascertains switch-hitter and it does fowl impeachment. sent2: something is a kind of an airhead if it is brassy and is noxious. sent3: if the wally ascertains cowbarn and is a flatterer then it does not reflectorize plonk. sent4: if something does reflectorize battering and it is a Tyrannus it is not a triazolam. sent5: if the wally does pigment corn and does precipitate it does not ascertain Jayshullah. sent6: if something that does ascertain lingerie does ascertain fob then it is not a Hupa. sent7: the wally does ascertain Jayshullah if it is second and ascertains switch-hitter. sent8: if the switch-hitter does reflectorize battering and it is noxious it does not reflectorize polyelectrolyte. sent9: that if the wally does ascertain paneling and it is the prospectus then the wally ascertains Jayshullah is true. sent10: if the godparent is a kind of a IFC and it is leaden then it is not a second. sent11: the wally is a kind of a vicegerent if it is a kind of a second and it does pigment fives. sent12: if a second does ascertain switch-hitter it does not ascertain Jayshullah. sent13: the wally does not pigment groschen if it reflectorizes antifeminist and it ascertains Jayshullah. sent14: the wally does not ascertain Jayshullah if it does pigment drippiness and plaits. sent15: a geometry that is nonspatial is Hanoverian. sent16: the wally is not a second if it is a Tyrannus and it reflectorizes Adelie. sent17: if the wally is a scalability and it is neurobiological it does fowl wally. sent18: something that does second and does ascertain switch-hitter ascertains Jayshullah. sent19: something that does pigment fives and repossesses is a Audubon. ; $proof$ = 
sent12 -> hypothesis; __DISPROVED__