swesr wsesr sewsr eswsr wessr ewssr swser wsser sswer sswer wsser swser seswr esswr ssewr ssewr esswr seswr wessr ewssr wsesr swesr eswsr sewsr swers wsers sewrs eswrs wesrs ewsrs swres wsres srwes rswes wrses rwses serws esrws srews rsews ersws resws werss ewrss wress rwess erwss rewss swsre wssre sswre sswre wssre swsre swrse wsrse srwse rswse wrsse rwsse ssrwe ssrwe srswe rsswe srswe rsswe wsrse swrse wrsse rwsse srwse rswse sesrw essrw sserw sserw essrw sesrw sersw esrsw sresw rsesw erssw ressw ssrew ssrew srsew rssew srsew rssew esrsw sersw erssw ressw sresw rsesw wesrs ewsrs wsers swers eswrs sewrs werss ewrss wress rwess erwss rewss wsres swres wrses rwses srwes rswes esrws serws ersws resws srews rsews
Note: these 'words' (valid or invalid) are all the permutations of the word swesr. These words are obtained by scrambling the letters in swesr.