nacsm ancsm ncasm cnasm acnsm cansm nascm anscm nsacm snacm asncm sancm ncsam cnsam nscam sncam csnam scnam acsnm casnm ascnm sacnm csanm scanm nacms ancms ncams cnams acnms canms namcs anmcs nmacs mnacs amncs mancs ncmas cnmas nmcas mncas cmnas mcnas acmns camns amcns macns cmans mcans nasmc ansmc nsamc snamc asnmc sanmc namsc anmsc nmasc mnasc amnsc mansc nsmac snmac nmsac mnsac smnac msnac asmnc samnc amsnc masnc smanc msanc ncsma cnsma nscma sncma csnma scnma ncmsa cnmsa nmcsa mncsa cmnsa mcnsa nsmca snmca nmsca mnsca smnca msnca csmna scmna cmsna mcsna smcna mscna acsmn casmn ascmn sacmn csamn scamn acmsn camsn amcsn macsn cmasn mcasn asmcn samcn amscn mascn smacn msacn csman scman cmsan mcsan smcan mscan
Note: these 'words' (valid or invalid) are all the permutations of the word nacsm. These words are obtained by scrambling the letters in nacsm.