redip erdip rdeip dreip edrip derip reidp eridp riedp iredp eirdp ierdp rdiep driep ridep irdep direp idrep edirp deirp eidrp iedrp dierp iderp redpi erdpi rdepi drepi edrpi derpi repdi erpdi rpedi predi eprdi perdi rdpei drpei rpdei prdei dprei pdrei edpri depri epdri pedri dperi pderi reipd eripd riepd irepd eirpd ierpd repid erpid rpeid preid eprid perid riped irped rpied pried ipred pired eiprd ieprd epird peird iperd pierd rdipe dripe ridpe irdpe dirpe idrpe rdpie drpie rpdie prdie dprie pdrie ripde irpde rpide pride iprde pirde dipre idpre dpire pdire ipdre pidre edipr deipr eidpr iedpr diepr idepr edpir depir epdir pedir dpeir pdeir eipdr iepdr epidr peidr ipedr piedr diper idper dpier pdier ipder pider
Note: these 'words' (valid or invalid) are all the permutations of the word redip. These words are obtained by scrambling the letters in redip.