nmeaf mneaf nemaf enmaf menaf emnaf nmaef mnaef namef anmef manef amnef neamf enamf naemf anemf eanmf aenmf meanf emanf maenf amenf eamnf aemnf nmefa mnefa nemfa enmfa menfa emnfa nmfea mnfea nfmea fnmea mfnea fmnea nefma enfma nfema fnema efnma fenma mefna emfna mfena fmena efmna femna nmafe mnafe namfe anmfe manfe amnfe nmfae mnfae nfmae fnmae mfnae fmnae nafme anfme nfame fname afnme fanme mafne amfne mfane fmane afmne famne neafm enafm naefm anefm eanfm aenfm nefam enfam nfeam fneam efnam fenam nafem anfem nfaem fnaem afnem fanem eafnm aefnm efanm feanm afenm faenm meafn emafn maefn amefn eamfn aemfn mefan emfan mfean fmean efman feman mafen amfen mfaen fmaen afmen famen eafmn aefmn efamn feamn afemn faemn
Note: these 'words' (valid or invalid) are all the permutations of the word nmeaf. These words are obtained by scrambling the letters in nmeaf.