vpisd pvisd vipsd ivpsd pivsd ipvsd vpsid pvsid vspid svpid psvid spvid vispd ivspd vsipd svipd isvpd sivpd pisvd ipsvd psivd spivd ispvd sipvd vpids pvids vipds ivpds pivds ipvds vpdis pvdis vdpis dvpis pdvis dpvis vidps ivdps vdips dvips idvps divps pidvs ipdvs pdivs dpivs idpvs dipvs vpsdi pvsdi vspdi svpdi psvdi spvdi vpdsi pvdsi vdpsi dvpsi pdvsi dpvsi vsdpi svdpi vdspi dvspi sdvpi dsvpi psdvi spdvi pdsvi dpsvi sdpvi dspvi visdp ivsdp vsidp svidp isvdp sivdp vidsp ivdsp vdisp dvisp idvsp divsp vsdip svdip vdsip dvsip sdvip dsvip isdvp sidvp idsvp disvp sdivp dsivp pisdv ipsdv psidv spidv ispdv sipdv pidsv ipdsv pdisv dpisv idpsv dipsv psdiv spdiv pdsiv dpsiv sdpiv dspiv isdpv sidpv idspv dispv sdipv dsipv
Note: these 'words' (valid or invalid) are all the permutations of the word vpisd. These words are obtained by scrambling the letters in vpisd.