ccrna ccrna crcna rccna crcna rccna ccnra ccnra cncra nccra cncra nccra crnca rcnca cnrca ncrca rncca nrcca crnca rcnca cnrca ncrca rncca nrcca ccran ccran crcan rccan crcan rccan ccarn ccarn cacrn accrn cacrn accrn cracn rcacn carcn acrcn raccn arccn cracn rcacn carcn acrcn raccn arccn ccnar ccnar cncar nccar cncar nccar ccanr ccanr cacnr accnr cacnr accnr cnacr ncacr cancr acncr naccr anccr cnacr ncacr cancr acncr naccr anccr crnac rcnac cnrac ncrac rncac nrcac cranc rcanc carnc acrnc racnc arcnc cnarc ncarc canrc acnrc nacrc ancrc rnacc nracc rancc arncc narcc anrcc crnac rcnac cnrac ncrac rncac nrcac cranc rcanc carnc acrnc racnc arcnc cnarc ncarc canrc acnrc nacrc ancrc rnacc nracc rancc arncc narcc anrcc
Note: these 'words' (valid or invalid) are all the permutations of the word ccrna. These words are obtained by scrambling the letters in ccrna.