the viscus is not noninheritable.
sent1: the fact that the mustang does not repot croaker and is not a kind of a sink is incorrect. sent2: the viscus is noninheritable if the mustang does lean greenfly. sent3: the mustang leans greenfly if the fact that it does not repot croaker and it does not sink is false.
sent3 & sent1 -> int1: the mustang leans greenfly.; int1 & sent2 -> hypothesis;
$hypothesis$ = the viscus is not noninheritable. ; $context$ = sent1: the fact that the mustang does not repot croaker and is not a kind of a sink is incorrect. sent2: the viscus is noninheritable if the mustang does lean greenfly. sent3: the mustang leans greenfly if the fact that it does not repot croaker and it does not sink is false. ; $proof$ = 
sent3 & sent1 -> int1: the mustang leans greenfly.; int1 & sent2 -> hypothesis; __DISPROVED__