either the river is a Gujarati or it is not insincere or both.
sent1: the fritillary is a Gujarati but not sociocultural. sent2: everything is not a European. sent3: everything is not a kind of a European and it is not a chimneysweeper.
sent3 -> int1: the Coricidin is non-European thing that is not a chimneysweeper.; int1 -> int2: something is not a European and it is not a chimneysweeper.;
the fritillary is not a trim and it is not sociocultural.
sent1 -> int3: the fritillary is not sociocultural.;
$hypothesis$ = either the river is a Gujarati or it is not insincere or both. ; $context$ = sent1: the fritillary is a Gujarati but not sociocultural. sent2: everything is not a European. sent3: everything is not a kind of a European and it is not a chimneysweeper. ; $proof$ = 
sent3 -> int1: the Coricidin is non-European thing that is not a chimneysweeper.; int1 -> int2: something is not a European and it is not a chimneysweeper.; __UNKNOWN__