srvex rsvex svrex vsrex rvsex vrsex srevx rsevx servx esrvx resvx ersvx sverx vserx sevrx esvrx vesrx evsrx rvesx vresx revsx ervsx versx evrsx srvxe rsvxe svrxe vsrxe rvsxe vrsxe srxve rsxve sxrve xsrve rxsve xrsve svxre vsxre sxvre xsvre vxsre xvsre rvxse vrxse rxvse xrvse vxrse xvrse srexv rsexv serxv esrxv resxv ersxv srxev rsxev sxrev xsrev rxsev xrsev sexrv esxrv sxerv xserv exsrv xesrv rexsv erxsv rxesv xresv exrsv xersv svexr vsexr sevxr esvxr vesxr evsxr svxer vsxer sxver xsver vxser xvser sexvr esxvr sxevr xsevr exsvr xesvr vexsr evxsr vxesr xvesr exvsr xevsr rvexs vrexs revxs ervxs verxs evrxs rvxes vrxes rxves xrves vxres xvres rexvs erxvs rxevs xrevs exrvs xervs vexrs evxrs vxers xvers exvrs xevrs
Note: these 'words' (valid or invalid) are all the permutations of the word srvex. These words are obtained by scrambling the letters in srvex.