carns acrns crans rcans arcns racns canrs acnrs cnars ncars ancrs nacrs crnas rcnas cnras ncras rncas nrcas arncs rancs anrcs narcs rnacs nracs carsn acrsn crasn rcasn arcsn racsn casrn acsrn csarn scarn ascrn sacrn crsan rcsan csran scran rscan srcan arscn rascn asrcn sarcn rsacn sracn cansr acnsr cnasr ncasr ancsr nacsr casnr acsnr csanr scanr ascnr sacnr cnsar ncsar csnar scnar nscar sncar anscr nascr asncr sancr nsacr snacr crnsa rcnsa cnrsa ncrsa rncsa nrcsa crsna rcsna csrna scrna rscna srcna cnsra ncsra csnra scnra nscra sncra rnsca nrsca rsnca srnca nsrca snrca arnsc ransc anrsc narsc rnasc nrasc arsnc rasnc asrnc sarnc rsanc sranc ansrc nasrc asnrc sanrc nsarc snarc rnsac nrsac rsnac srnac nsrac snrac
Note: these 'words' (valid or invalid) are all the permutations of the word carns. These words are obtained by scrambling the letters in carns.