the fact that there exists something such that if it is not a acre-foot then it is not echoic and is not a SEC is not true.
sent1: there exists something such that if it is not a acre-foot then it is not echoic. sent2: the ectoproct is not echoic but it is a kind of a SEC if it is not a acre-foot. sent3: there is something such that if it is not a acre-foot it is echoic and not a SEC. sent4: something is not a amphotericin and it does not finger if it is not a symphilid. sent5: there is something such that if it is non-wetting then it does not tail and it is not a Donar. sent6: there exists something such that if that it is not a acre-foot is not wrong it is not a kind of a SEC. sent7: the ectoproct is not echoic and it is not a SEC if it is not a acre-foot. sent8: something does not reorient pelvimetry and it is not a SEC if the fact that it does not lean hold. sent9: if the ectoproct is not a kind of a acre-foot it is not echoic. sent10: the fact that the race is not a calciferol and is not a kind of a remove is true if it is not a kind of a acre-foot. sent11: there is something such that if it is a acre-foot it is both not echoic and not a SEC. sent12: there exists something such that if it is not a acre-foot it is nonechoic a SEC. sent13: that something does not reorient oleoresin and is not a kind of a cetacean hold if it is not azotemic. sent14: there is something such that if it does not overcome it does not reorient centrum. sent15: the ectoproct is not echoic and it is not a kind of a SEC if it is a kind of a acre-foot.
sent7 -> hypothesis;
the crake does not reorient pelvimetry and is not a SEC if that it is not leaning is true.
sent8 -> hypothesis;
$hypothesis$ = the fact that there exists something such that if it is not a acre-foot then it is not echoic and is not a SEC is not true. ; $context$ = sent1: there exists something such that if it is not a acre-foot then it is not echoic. sent2: the ectoproct is not echoic but it is a kind of a SEC if it is not a acre-foot. sent3: there is something such that if it is not a acre-foot it is echoic and not a SEC. sent4: something is not a amphotericin and it does not finger if it is not a symphilid. sent5: there is something such that if it is non-wetting then it does not tail and it is not a Donar. sent6: there exists something such that if that it is not a acre-foot is not wrong it is not a kind of a SEC. sent7: the ectoproct is not echoic and it is not a SEC if it is not a acre-foot. sent8: something does not reorient pelvimetry and it is not a SEC if the fact that it does not lean hold. sent9: if the ectoproct is not a kind of a acre-foot it is not echoic. sent10: the fact that the race is not a calciferol and is not a kind of a remove is true if it is not a kind of a acre-foot. sent11: there is something such that if it is a acre-foot it is both not echoic and not a SEC. sent12: there exists something such that if it is not a acre-foot it is nonechoic a SEC. sent13: that something does not reorient oleoresin and is not a kind of a cetacean hold if it is not azotemic. sent14: there is something such that if it does not overcome it does not reorient centrum. sent15: the ectoproct is not echoic and it is not a kind of a SEC if it is a kind of a acre-foot. ; $proof$ = 
sent7 -> hypothesis; __DISPROVED__