carts acrts crats rcats arcts racts catrs actrs ctars tcars atcrs tacrs crtas rctas ctras tcras rtcas trcas artcs ratcs atrcs tarcs rtacs tracs carst acrst crast rcast arcst racst casrt acsrt csart scart ascrt sacrt crsat rcsat csrat scrat rscat srcat arsct rasct asrct sarct rsact sract catsr actsr ctasr tcasr atcsr tacsr castr acstr csatr scatr asctr sactr ctsar tcsar cstar sctar tscar stcar atscr tascr astcr satcr tsacr stacr crtsa rctsa ctrsa tcrsa rtcsa trcsa crsta rcsta csrta scrta rscta srcta ctsra tcsra cstra sctra tscra stcra rtsca trsca rstca srtca tsrca strca artsc ratsc atrsc tarsc rtasc trasc arstc rastc asrtc sartc rsatc sratc atsrc tasrc astrc satrc tsarc starc rtsac trsac rstac srtac tsrac strac
Note: these 'words' (valid or invalid) are all the permutations of the word carts. These words are obtained by scrambling the letters in carts.