sapxn aspxn spaxn psaxn apsxn pasxn saxpn asxpn sxapn xsapn axspn xaspn spxan psxan sxpan xspan pxsan xpsan apxsn paxsn axpsn xapsn pxasn xpasn sapnx aspnx spanx psanx apsnx pasnx sanpx asnpx snapx nsapx anspx naspx spnax psnax snpax nspax pnsax npsax apnsx pansx anpsx napsx pnasx npasx saxnp asxnp sxanp xsanp axsnp xasnp sanxp asnxp snaxp nsaxp ansxp nasxp sxnap xsnap snxap nsxap xnsap nxsap axnsp xansp anxsp naxsp xnasp nxasp spxna psxna sxpna xspna pxsna xpsna spnxa psnxa snpxa nspxa pnsxa npsxa sxnpa xsnpa snxpa nsxpa xnspa nxspa pxnsa xpnsa pnxsa npxsa xnpsa nxpsa apxns paxns axpns xapns pxans xpans apnxs panxs anpxs napxs pnaxs npaxs axnps xanps anxps naxps xnaps nxaps pxnas xpnas pnxas npxas xnpas nxpas
Note: these 'words' (valid or invalid) are all the permutations of the word sapxn. These words are obtained by scrambling the letters in sapxn.