irasc riasc iarsc airsc raisc arisc irsac risac israc sirac rsiac sriac iasrc aisrc isarc siarc asirc sairc rasic arsic rsaic sraic asric saric iracs riacs iarcs aircs raics arics ircas ricas icras ciras rcias crias iacrs aicrs icars ciars acirs cairs racis arcis rcais crais acris caris irsca risca isrca sirca rsica srica ircsa ricsa icrsa cirsa rcisa crisa iscra sicra icsra cisra scira csira rscia srcia rcsia crsia scria csria iascr aiscr isacr siacr asicr saicr iacsr aicsr icasr ciasr acisr caisr iscar sicar icsar cisar sciar csiar ascir sacir acsir casir scair csair rasci arsci rsaci sraci asrci sarci racsi arcsi rcasi crasi acrsi carsi rscai srcai rcsai crsai scrai csrai ascri sacri acsri casri scari csari
Note: these 'words' (valid or invalid) are all the permutations of the word irasc. These words are obtained by scrambling the letters in irasc.