plxis lpxis pxlis xplis lxpis xlpis plixs lpixs pilxs iplxs lipxs ilpxs pxils xpils pixls ipxls xipls ixpls lxips xlips lixps ilxps xilps ixlps plxsi lpxsi pxlsi xplsi lxpsi xlpsi plsxi lpsxi pslxi splxi lspxi slpxi pxsli xpsli psxli spxli xspli sxpli lxspi xlspi lsxpi slxpi xslpi sxlpi plisx lpisx pilsx iplsx lipsx ilpsx plsix lpsix pslix splix lspix slpix pislx ipslx psilx spilx isplx siplx lispx ilspx lsipx slipx islpx silpx pxisl xpisl pixsl ipxsl xipsl ixpsl pxsil xpsil psxil spxil xspil sxpil pisxl ipsxl psixl spixl ispxl sipxl xispl ixspl xsipl sxipl isxpl sixpl lxisp xlisp lixsp ilxsp xilsp ixlsp lxsip xlsip lsxip slxip xslip sxlip lisxp ilsxp lsixp slixp islxp silxp xislp ixslp xsilp sxilp isxlp sixlp
Note: these 'words' (valid or invalid) are all the permutations of the word plxis. These words are obtained by scrambling the letters in plxis.