dslre sdlre dlsre ldsre sldre lsdre dsrle sdrle drsle rdsle srdle rsdle dlrse ldrse drlse rdlse lrdse rldse slrde lsrde srlde rslde lrsde rlsde dsler sdler dlser ldser slder lsder dselr sdelr deslr edslr sedlr esdlr dlesr ldesr delsr edlsr ledsr eldsr sledr lsedr seldr esldr lesdr elsdr dsrel sdrel drsel rdsel srdel rsdel dserl sderl desrl edsrl sedrl esdrl dresl rdesl dersl edrsl redsl erdsl sredl rsedl serdl esrdl resdl ersdl dlres ldres drles rdles lrdes rldes dlers lders delrs edlrs ledrs eldrs drels rdels derls edrls redls erdls lreds rleds lerds elrds relds erlds slred lsred srled rsled lrsed rlsed slerd lserd selrd eslrd lesrd elsrd sreld rseld serld esrld resld ersld lresd rlesd lersd elrsd relsd erlsd
Note: these 'words' (valid or invalid) are all the permutations of the word dslre. These words are obtained by scrambling the letters in dslre.