xved vxed xevd exvd vexd evxd xvde vxde xdve dxve vdxe dvxe xedv exdv xdev dxev edxv dexv vedx evdx vdex dvex edvx devx
Note: these 'words' (valid or invalid) are all the permutations of the word xved. These words are obtained by scrambling the letters in xved.