naflx anflx nfalx fnalx afnlx fanlx nalfx anlfx nlafx lnafx alnfx lanfx nflax fnlax nlfax lnfax flnax lfnax aflnx falnx alfnx lafnx flanx lfanx nafxl anfxl nfaxl fnaxl afnxl fanxl naxfl anxfl nxafl xnafl axnfl xanfl nfxal fnxal nxfal xnfal fxnal xfnal afxnl faxnl axfnl xafnl fxanl xfanl nalxf anlxf nlaxf lnaxf alnxf lanxf naxlf anxlf nxalf xnalf axnlf xanlf nlxaf lnxaf nxlaf xnlaf lxnaf xlnaf alxnf laxnf axlnf xalnf lxanf xlanf nflxa fnlxa nlfxa lnfxa flnxa lfnxa nfxla fnxla nxfla xnfla fxnla xfnla nlxfa lnxfa nxlfa xnlfa lxnfa xlnfa flxna lfxna fxlna xflna lxfna xlfna aflxn falxn alfxn lafxn flaxn lfaxn afxln faxln axfln xafln fxaln xfaln alxfn laxfn axlfn xalfn lxafn xlafn flxan lfxan fxlan xflan lxfan xlfan
Note: these 'words' (valid or invalid) are all the permutations of the word naflx. These words are obtained by scrambling the letters in naflx.