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