ungum nugum ugnum gunum nguum gnuum unugm nuugm uungm uungm nuugm unugm ugunm guunm uugnm uugnm guunm ugunm nguum gnuum nugum ungum gunum ugnum ungmu nugmu ugnmu gunmu ngumu gnumu unmgu numgu umngu mungu nmugu mnugu ugmnu gumnu umgnu mugnu gmunu mgunu ngmuu gnmuu nmguu mnguu gmnuu mgnuu unumg nuumg uunmg uunmg nuumg unumg unmug numug umnug munug nmuug mnuug uumng uumng umung muung umung muung numug unmug nmuug mnuug umnug munug ugumn guumn uugmn uugmn guumn ugumn ugmun gumun umgun mugun gmuun mguun uumgn uumgn umugn muugn umugn muugn gumun ugmun gmuun mguun umgun mugun ngumu gnumu nugmu ungmu gunmu ugnmu ngmuu gnmuu nmguu mnguu gmnuu mgnuu numgu unmgu nmugu mnugu umngu mungu gumnu ugmnu gmunu mgunu umgnu mugnu
Note: these 'words' (valid or invalid) are all the permutations of the word ungum. These words are obtained by scrambling the letters in ungum.