ulmin lumin umlin mulin lmuin mluin ulimn luimn uilmn iulmn liumn ilumn umiln muiln uimln iumln miuln imuln lmiun mliun limun ilmun milun imlun ulmni lumni umlni mulni lmuni mluni ulnmi lunmi unlmi nulmi lnumi nlumi umnli munli unmli numli mnuli nmuli lmnui mlnui lnmui nlmui mnlui nmlui ulinm luinm uilnm iulnm liunm ilunm ulnim lunim unlim nulim lnuim nluim uinlm iunlm unilm nuilm inulm niulm linum ilnum lnium nlium inlum nilum uminl muinl uimnl iumnl miunl imunl umnil munil unmil numil mnuil nmuil uinml iunml uniml nuiml inuml niuml minul imnul mniul nmiul inmul nimul lminu mlinu limnu ilmnu milnu imlnu lmniu mlniu lnmiu nlmiu mnliu nmliu linmu ilnmu lnimu nlimu inlmu nilmu minlu imnlu mnilu nmilu inmlu nimlu
Note: these 'words' (valid or invalid) are all the permutations of the word ulmin. These words are obtained by scrambling the letters in ulmin.