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