mptus pmtus mtpus tmpus ptmus tpmus mputs pmuts mupts umpts pumts upmts mtups tmups mutps umtps tumps utmps ptums tpums putms uptms tupms utpms mptsu pmtsu mtpsu tmpsu ptmsu tpmsu mpstu pmstu msptu smptu psmtu spmtu mtspu tmspu mstpu smtpu tsmpu stmpu ptsmu tpsmu pstmu sptmu tspmu stpmu mpust pmust mupst umpst pumst upmst mpsut pmsut msput smput psmut spmut muspt umspt msupt smupt usmpt sumpt pusmt upsmt psumt spumt uspmt supmt mtusp tmusp mutsp umtsp tumsp utmsp mtsup tmsup mstup smtup tsmup stmup mustp umstp msutp smutp usmtp sumtp tusmp utsmp tsump stump ustmp sutmp ptusm tpusm putsm uptsm tupsm utpsm ptsum tpsum pstum sptum tspum stpum pustm upstm psutm sputm usptm suptm tuspm utspm tsupm stupm ustpm sutpm
Note: these 'words' (valid or invalid) are all the permutations of the word mptus. These words are obtained by scrambling the letters in mptus.