colts oclts clots lcots olcts locts cotls octls ctols tcols otcls tocls cltos lctos ctlos tclos ltcos tlcos oltcs lotcs otlcs tolcs ltocs tlocs colst oclst clost lcost olcst locst coslt ocslt csolt scolt osclt soclt clsot lcsot cslot sclot lscot slcot olsct losct oslct solct lsoct sloct cotsl octsl ctosl tcosl otcsl tocsl costl ocstl csotl scotl osctl soctl ctsol tcsol cstol sctol tscol stcol otscl toscl ostcl sotcl tsocl stocl cltso lctso ctlso tclso ltcso tlcso clsto lcsto cslto sclto lscto slcto ctslo tcslo cstlo sctlo tsclo stclo ltsco tlsco lstco sltco tslco stlco oltsc lotsc otlsc tolsc ltosc tlosc olstc lostc osltc soltc lsotc slotc otslc toslc ostlc sotlc tsolc stolc ltsoc tlsoc lstoc sltoc tsloc stloc
Note: these 'words' (valid or invalid) are all the permutations of the word colts. These words are obtained by scrambling the letters in colts.