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