redux erdux rdeux dreux edrux derux reudx erudx ruedx uredx eurdx uerdx rduex druex rudex urdex durex udrex edurx deurx eudrx uedrx duerx uderx redxu erdxu rdexu drexu edrxu derxu rexdu erxdu rxedu xredu exrdu xerdu rdxeu drxeu rxdeu xrdeu dxreu xdreu edxru dexru exdru xedru dxeru xderu reuxd eruxd ruexd urexd eurxd uerxd rexud erxud rxeud xreud exrud xerud ruxed urxed rxued xrued uxred xured euxrd uexrd exurd xeurd uxerd xuerd rduxe druxe rudxe urdxe durxe udrxe rdxue drxue rxdue xrdue dxrue xdrue ruxde urxde rxude xrude uxrde xurde duxre udxre dxure xdure uxdre xudre eduxr deuxr eudxr uedxr duexr udexr edxur dexur exdur xedur dxeur xdeur euxdr uexdr exudr xeudr uxedr xuedr duxer udxer dxuer xduer uxder xuder
Note: these 'words' (valid or invalid) are all the permutations of the word redux. These words are obtained by scrambling the letters in redux.