rdxme drxme rxdme xrdme dxrme xdrme rdmxe drmxe rmdxe mrdxe dmrxe mdrxe rxmde xrmde rmxde mrxde xmrde mxrde dxmre xdmre dmxre mdxre xmdre mxdre rdxem drxem rxdem xrdem dxrem xdrem rdexm drexm redxm erdxm derxm edrxm rxedm xredm rexdm erxdm xerdm exrdm dxerm xderm dexrm edxrm xedrm exdrm rdmex drmex rmdex mrdex dmrex mdrex rdemx dremx redmx erdmx dermx edrmx rmedx mredx remdx ermdx merdx emrdx dmerx mderx demrx edmrx medrx emdrx rxmed xrmed rmxed mrxed xmred mxred rxemd xremd rexmd erxmd xermd exrmd rmexd mrexd remxd ermxd merxd emrxd xmerd mxerd xemrd exmrd mexrd emxrd dxmer xdmer dmxer mdxer xmder mxder dxemr xdemr dexmr edxmr xedmr exdmr dmexr mdexr demxr edmxr medxr emdxr xmedr mxedr xemdr exmdr mexdr emxdr
Note: these 'words' (valid or invalid) are all the permutations of the word rdxme. These words are obtained by scrambling the letters in rdxme.