fungs ufngs fnugs nfugs unfgs nufgs fugns ufgns fguns gfuns ugfns gufns fngus nfgus fgnus gfnus ngfus gnfus ungfs nugfs ugnfs gunfs ngufs gnufs funsg ufnsg fnusg nfusg unfsg nufsg fusng ufsng fsung sfung usfng sufng fnsug nfsug fsnug sfnug nsfug snfug unsfg nusfg usnfg sunfg nsufg snufg fugsn ufgsn fgusn gfusn ugfsn gufsn fusgn ufsgn fsugn sfugn usfgn sufgn fgsun gfsun fsgun sfgun gsfun sgfun ugsfn gusfn usgfn sugfn gsufn sgufn fngsu nfgsu fgnsu gfnsu ngfsu gnfsu fnsgu nfsgu fsngu sfngu nsfgu snfgu fgsnu gfsnu fsgnu sfgnu gsfnu sgfnu ngsfu gnsfu nsgfu sngfu gsnfu sgnfu ungsf nugsf ugnsf gunsf ngusf gnusf unsgf nusgf usngf sungf nsugf snugf ugsnf gusnf usgnf sugnf gsunf sgunf ngsuf gnsuf nsguf snguf gsnuf sgnuf
Note: these 'words' (valid or invalid) are all the permutations of the word fungs. These words are obtained by scrambling the letters in fungs.