gfmun fgmun gmfun mgfun fmgun mfgun gfumn fgumn gufmn ugfmn fugmn ufgmn gmufn mgufn gumfn ugmfn mugfn umgfn fmugn mfugn fumgn ufmgn mufgn umfgn gfmnu fgmnu gmfnu mgfnu fmgnu mfgnu gfnmu fgnmu gnfmu ngfmu fngmu nfgmu gmnfu mgnfu gnmfu ngmfu mngfu nmgfu fmngu mfngu fnmgu nfmgu mnfgu nmfgu gfunm fgunm gufnm ugfnm fugnm ufgnm gfnum fgnum gnfum ngfum fngum nfgum gunfm ugnfm gnufm ngufm ungfm nugfm fungm ufngm fnugm nfugm unfgm nufgm gmunf mgunf gumnf ugmnf mugnf umgnf gmnuf mgnuf gnmuf ngmuf mnguf nmguf gunmf ugnmf gnumf ngumf ungmf nugmf mungf umngf mnugf nmugf unmgf numgf fmung mfung fumng ufmng mufng umfng fmnug mfnug fnmug nfmug mnfug nmfug funmg ufnmg fnumg nfumg unfmg nufmg munfg umnfg mnufg nmufg unmfg numfg
Note: these 'words' (valid or invalid) are all the permutations of the word gfmun. These words are obtained by scrambling the letters in gfmun.