lumen ulmen lmuen mluen umlen mulen luemn ulemn leumn elumn uelmn eulmn lmeun mleun lemun elmun melun emlun umeln mueln uemln eumln meuln emuln lumne ulmne lmune mlune umlne mulne lunme ulnme lnume nlume unlme nulme lmnue mlnue lnmue nlmue mnlue nmlue umnle munle unmle numle mnule nmule luenm ulenm leunm elunm uelnm eulnm lunem ulnem lnuem nluem unlem nulem lenum elnum lneum nleum enlum nelum uenlm eunlm unelm nuelm enulm neulm lmenu mlenu lemnu elmnu melnu emlnu lmneu mlneu lnmeu nlmeu mnleu nmleu lenmu elnmu lnemu nlemu enlmu nelmu menlu emnlu mnelu nmelu enmlu nemlu umenl muenl uemnl eumnl meunl emunl umnel munel unmel numel mnuel nmuel uenml eunml uneml nueml enuml neuml menul emnul mneul nmeul enmul nemul
Note: these 'words' (valid or invalid) are all the permutations of the word lumen. These words are obtained by scrambling the letters in lumen.