punas upnas pnuas npuas unpas nupas puans upans pauns apuns uapns aupns pnaus npaus panus apnus napus anpus unaps nuaps uanps aunps naups anups punsa upnsa pnusa npusa unpsa nupsa pusna upsna psuna spuna uspna supna pnsua npsua psnua spnua nspua snpua unspa nuspa usnpa sunpa nsupa snupa puasn upasn pausn apusn uapsn aupsn pusan upsan psuan spuan uspan supan pasun apsun psaun spaun aspun sapun uaspn auspn usapn suapn asupn saupn pnasu npasu pansu apnsu napsu anpsu pnsau npsau psnau spnau nspau snpau pasnu apsnu psanu spanu aspnu sapnu naspu anspu nsapu snapu asnpu sanpu unasp nuasp uansp aunsp nausp anusp unsap nusap usnap sunap nsuap snuap uasnp ausnp usanp suanp asunp saunp nasup ansup nsaup snaup asnup sanup
Note: these 'words' (valid or invalid) are all the permutations of the word punas. These words are obtained by scrambling the letters in punas.