nouls onuls nuols unols ounls uonls nolus onlus nlous lnous olnus lonus nulos unlos nluos lnuos ulnos lunos oulns uolns oluns louns ulons luons nousl onusl nuosl unosl ounsl uonsl nosul onsul nsoul snoul osnul sonul nusol unsol nsuol snuol usnol sunol ousnl uosnl osunl sounl usonl suonl nolsu onlsu nlosu lnosu olnsu lonsu noslu onslu nsolu snolu osnlu sonlu nlsou lnsou nslou snlou lsnou slnou olsnu losnu oslnu solnu lsonu slonu nulso unlso nluso lnuso ulnso lunso nuslo unslo nsulo snulo usnlo sunlo nlsuo lnsuo nsluo snluo lsnuo slnuo ulsno lusno uslno sulno lsuno sluno oulsn uolsn olusn lousn ulosn luosn ousln uosln osuln souln usoln suoln olsun losun oslun solun lsoun sloun ulson luson uslon sulon lsuon sluon
Note: these 'words' (valid or invalid) are all the permutations of the word nouls. These words are obtained by scrambling the letters in nouls.