sleds lseds selds eslds lesds elsds sldes lsdes sdles dsles ldses dlses sedls esdls sdels dsels edsls desls ledss eldss ldess dless edlss delss slesd lsesd selsd eslsd lessd elssd slsed lssed ssled ssled lssed slsed sesld essld sseld sseld essld sesld lessd elssd lsesd slesd eslsd selsd sldse lsdse sdlse dslse ldsse dlsse slsde lssde sslde sslde lssde slsde sdsle dssle ssdle ssdle dssle sdsle ldsse dlsse lsdse sldse dslse sdlse sedsl esdsl sdesl dsesl edssl dessl sesdl essdl ssedl ssedl essdl sesdl sdsel dssel ssdel ssdel dssel sdsel edssl dessl esdsl sedsl dsesl sdesl ledss eldss ldess dless edlss delss lesds elsds lseds sleds eslds selds ldses dlses lsdes sldes dsles sdles edsls desls esdls sedls dsels sdels
Note: these 'words' (valid or invalid) are all the permutations of the word sleds. These words are obtained by scrambling the letters in sleds.