unled nuled ulned luned nlued lnued uneld nueld uenld eunld neuld enuld ulend luend uelnd eulnd leund elund nleud lneud nelud enlud lenud elnud unlde nulde ulnde lunde nlude lnude undle nudle udnle dunle ndule dnule uldne ludne udlne dulne ldune dlune nldue lndue ndlue dnlue ldnue dlnue unedl nuedl uendl eundl neudl enudl undel nudel udnel dunel nduel dnuel uednl eudnl udenl duenl edunl deunl nedul endul ndeul dneul ednul denul uledn luedn ueldn euldn leudn eludn ulden luden udlen dulen lduen dluen uedln eudln udeln dueln eduln deuln ledun eldun ldeun dleun edlun delun nledu lnedu neldu enldu lendu elndu nldeu lndeu ndleu dnleu ldneu dlneu nedlu endlu ndelu dnelu ednlu denlu lednu eldnu ldenu dlenu edlnu delnu
Note: these 'words' (valid or invalid) are all the permutations of the word unled. These words are obtained by scrambling the letters in unled.