lundo ulndo lnudo nludo unldo nuldo ludno uldno lduno dluno udlno dulno lnduo nlduo ldnuo dlnuo ndluo dnluo undlo nudlo udnlo dunlo ndulo dnulo lunod ulnod lnuod nluod unlod nulod luond ulond lound olund uolnd oulnd lnoud nloud lonud olnud nolud onlud unold nuold uonld ounld nould onuld ludon uldon lduon dluon udlon dulon luodn ulodn loudn oludn uoldn ouldn ldoun dloun lodun oldun dolun odlun udoln duoln uodln oudln douln oduln lndou nldou ldnou dlnou ndlou dnlou lnodu nlodu londu olndu noldu onldu ldonu dlonu lodnu oldnu dolnu odlnu ndolu dnolu nodlu ondlu donlu odnlu undol nudol udnol dunol nduol dnuol unodl nuodl uondl oundl noudl onudl udonl duonl uodnl oudnl dounl odunl ndoul dnoul nodul ondul donul odnul
Note: these 'words' (valid or invalid) are all the permutations of the word lundo. These words are obtained by scrambling the letters in lundo.