rnars nrars ranrs arnrs narrs anrrs rnras nrras rrnas rrnas nrras rnras rarns arrns rrans rrans arrns rarns narrs anrrs nrars rnars arnrs ranrs rnasr nrasr ransr arnsr narsr anrsr rnsar nrsar rsnar srnar nsrar snrar rasnr arsnr rsanr sranr asrnr sarnr nasrr ansrr nsarr snarr asnrr sanrr rnrsa nrrsa rrnsa rrnsa nrrsa rnrsa rnsra nrsra rsnra srnra nsrra snrra rrsna rrsna rsrna srrna rsrna srrna nrsra rnsra nsrra snrra rsnra srnra rarsn arrsn rrasn rrasn arrsn rarsn rasrn arsrn rsarn srarn asrrn sarrn rrsan rrsan rsran srran rsran srran arsrn rasrn asrrn sarrn rsarn srarn narsr anrsr nrasr rnasr arnsr ransr nasrr ansrr nsarr snarr asnrr sanrr nrsar rnsar nsrar snrar rsnar srnar arsnr rasnr asrnr sarnr rsanr sranr
Note: these 'words' (valid or invalid) are all the permutations of the word rnars. These words are obtained by scrambling the letters in rnars.