nmdol mndol ndmol dnmol mdnol dmnol nmodl mnodl nomdl onmdl mondl omndl ndoml dnoml nodml ondml donml odnml mdonl dmonl modnl omdnl domnl odmnl nmdlo mndlo ndmlo dnmlo mdnlo dmnlo nmldo mnldo nlmdo lnmdo mlndo lmndo ndlmo dnlmo nldmo lndmo dlnmo ldnmo mdlno dmlno mldno lmdno dlmno ldmno nmold mnold nomld onmld monld omnld nmlod mnlod nlmod lnmod mlnod lmnod nolmd onlmd nlomd lnomd olnmd lonmd molnd omlnd mlond lmond olmnd lomnd ndolm dnolm nodlm ondlm donlm odnlm ndlom dnlom nldom lndom dlnom ldnom noldm onldm nlodm lnodm olndm londm dolnm odlnm dlonm ldonm oldnm lodnm mdoln dmoln modln omdln domln odmln mdlon dmlon mldon lmdon dlmon ldmon moldn omldn mlodn lmodn olmdn lomdn dolmn odlmn dlomn ldomn oldmn lodmn
Note: these 'words' (valid or invalid) are all the permutations of the word nmdol. These words are obtained by scrambling the letters in nmdol.