nanul annul nnaul nnaul annul nanul naunl anunl nuanl unanl aunnl uannl nnual nnual nunal unnal nunal unnal anunl naunl aunnl uannl nuanl unanl nanlu annlu nnalu nnalu annlu nanlu nalnu anlnu nlanu lnanu alnnu lannu nnlau nnlau nlnau lnnau nlnau lnnau anlnu nalnu alnnu lannu nlanu lnanu nauln anuln nualn unaln aunln uanln nalun anlun nlaun lnaun alnun lanun nulan unlan nluan lnuan ulnan lunan aulnn ualnn alunn launn ulann luann nnula nnula nunla unnla nunla unnla nnlua nnlua nlnua lnnua nlnua lnnua nulna unlna nluna lnuna ulnna lunna nulna unlna nluna lnuna ulnna lunna anuln nauln aunln uanln nualn unaln anlun nalun alnun lanun nlaun lnaun aulnn ualnn alunn launn ulann luann nulan unlan nluan lnuan ulnan lunan
Note: these 'words' (valid or invalid) are all the permutations of the word nanul. These words are obtained by scrambling the letters in nanul.