dolts odlts dlots ldots oldts lodts dotls odtls dtols tdols otdls todls dltos ldtos dtlos tdlos ltdos tldos oltds lotds otlds tolds ltods tlods dolst odlst dlost ldost oldst lodst doslt odslt dsolt sdolt osdlt sodlt dlsot ldsot dslot sdlot lsdot sldot olsdt losdt osldt soldt lsodt slodt dotsl odtsl dtosl tdosl otdsl todsl dostl odstl dsotl sdotl osdtl sodtl dtsol tdsol dstol sdtol tsdol stdol otsdl tosdl ostdl sotdl tsodl stodl dltso ldtso dtlso tdlso ltdso tldso dlsto ldsto dslto sdlto lsdto sldto dtslo tdslo dstlo sdtlo tsdlo stdlo ltsdo tlsdo lstdo sltdo tsldo stldo oltsd lotsd otlsd tolsd ltosd tlosd olstd lostd osltd soltd lsotd slotd otsld tosld ostld sotld tsold stold ltsod tlsod lstod sltod tslod stlod
Note: these 'words' (valid or invalid) are all the permutations of the word dolts. These words are obtained by scrambling the letters in dolts.