basen absen bsaen sbaen asben saben baesn abesn beasn ebasn aebsn eabsn bsean sbean besan ebsan seban esban asebn saebn aesbn easbn seabn esabn basne absne bsane sbane asbne sabne banse abnse bnase nbase anbse nabse bsnae sbnae bnsae nbsae snbae nsbae asnbe sanbe ansbe nasbe snabe nsabe baens abens beans ebans aebns eabns banes abnes bnaes nbaes anbes nabes benas ebnas bneas nbeas enbas nebas aenbs eanbs anebs naebs enabs neabs bsena sbena besna ebsna sebna esbna bsnea sbnea bnsea nbsea snbea nsbea bensa ebnsa bnesa nbesa enbsa nebsa senba esnba sneba nseba ensba nesba asenb saenb aesnb easnb seanb esanb asneb saneb anseb naseb snaeb nsaeb aensb eansb anesb naesb enasb neasb senab esnab sneab nseab ensab nesab
Note: these 'words' (valid or invalid) are all the permutations of the word basen. These words are obtained by scrambling the letters in basen.