napes anpes npaes pnaes apnes panes naeps aneps neaps enaps aenps eanps npeas pneas nepas enpas penas epnas apens paens aepns eapns peans epans napse anpse npase pnase apnse panse naspe anspe nsape snape asnpe sanpe npsae pnsae nspae snpae psnae spnae apsne pasne aspne sapne psane spane naesp anesp neasp enasp aensp eansp nasep ansep nsaep snaep asnep sanep nesap ensap nseap sneap esnap senap aesnp easnp asenp saenp esanp seanp npesa pnesa nepsa enpsa pensa epnsa npsea pnsea nspea snpea psnea spnea nespa enspa nsepa snepa esnpa senpa pesna epsna psena spena espna sepna apesn paesn aepsn eapsn peasn epasn apsen pasen aspen sapen psaen spaen aespn easpn asepn saepn esapn seapn pesan epsan psean spean espan sepan
Note: these 'words' (valid or invalid) are all the permutations of the word napes. These words are obtained by scrambling the letters in napes.