ncsta cnsta nscta sncta csnta scnta nctsa cntsa ntcsa tncsa ctnsa tcnsa nstca sntca ntsca tnsca stnca tsnca cstna sctna ctsna tcsna stcna tscna ncsat cnsat nscat sncat csnat scnat ncast cnast nacst ancst canst acnst nsact snact nasct ansct sanct asnct csant scant casnt acsnt sacnt ascnt nctas cntas ntcas tncas ctnas tcnas ncats cnats nacts ancts cants acnts ntacs tnacs natcs antcs tancs atncs ctans tcans catns actns tacns atcns nstac sntac ntsac tnsac stnac tsnac nsatc snatc nastc anstc santc asntc ntasc tnasc natsc antsc tansc atnsc stanc tsanc satnc astnc tasnc atsnc cstan sctan ctsan tcsan stcan tscan csatn scatn castn acstn sactn asctn ctasn tcasn catsn actsn tacsn atcsn stacn tsacn satcn astcn tascn atscn
Note: these 'words' (valid or invalid) are all the permutations of the word ncsta. These words are obtained by scrambling the letters in ncsta.