sdran dsran srdan rsdan drsan rdsan sdarn dsarn sadrn asdrn dasrn adsrn sradn rsadn sardn asrdn rasdn arsdn drasn rdasn darsn adrsn radsn ardsn sdrna dsrna srdna rsdna drsna rdsna sdnra dsnra sndra nsdra dnsra ndsra srnda rsnda snrda nsrda rnsda nrsda drnsa rdnsa dnrsa ndrsa rndsa nrdsa sdanr dsanr sadnr asdnr dasnr adsnr sdnar dsnar sndar nsdar dnsar ndsar sandr asndr snadr nsadr ansdr nasdr dansr adnsr dnasr ndasr andsr nadsr srand rsand sarnd asrnd rasnd arsnd srnad rsnad snrad nsrad rnsad nrsad sanrd asnrd snard nsard ansrd nasrd ransd arnsd rnasd nrasd anrsd narsd drans rdans darns adrns radns ardns drnas rdnas dnras ndras rndas nrdas danrs adnrs dnars ndars andrs nadrs rands arnds rnads nrads anrds nards
Note: these 'words' (valid or invalid) are all the permutations of the word sdran. These words are obtained by scrambling the letters in sdran.