pyxis ypxis pxyis xpyis yxpis xypis pyixs ypixs piyxs ipyxs yipxs iypxs pxiys xpiys pixys ipxys xipys ixpys yxips xyips yixps iyxps xiyps ixyps pyxsi ypxsi pxysi xpysi yxpsi xypsi pysxi ypsxi psyxi spyxi yspxi sypxi pxsyi xpsyi psxyi spxyi xspyi sxpyi yxspi xyspi ysxpi syxpi xsypi sxypi pyisx ypisx piysx ipysx yipsx iypsx pysix ypsix psyix spyix yspix sypix pisyx ipsyx psiyx spiyx ispyx sipyx yispx iyspx ysipx syipx isypx siypx pxisy xpisy pixsy ipxsy xipsy ixpsy pxsiy xpsiy psxiy spxiy xspiy sxpiy pisxy ipsxy psixy spixy ispxy sipxy xispy ixspy xsipy sxipy isxpy sixpy yxisp xyisp yixsp iyxsp xiysp ixysp yxsip xysip ysxip syxip xsyip sxyip yisxp iysxp ysixp syixp isyxp siyxp xisyp ixsyp xsiyp sxiyp isxyp sixyp
Note: these 'words' (valid or invalid) are all the permutations of the word pyxis. These words are obtained by scrambling the letters in pyxis.