podir opdir pdoir dpoir odpir dopir poidr opidr piodr ipodr oipdr iopdr pdior dpior pidor ipdor dipor idpor odipr doipr oidpr iodpr diopr idopr podri opdri pdori dpori odpri dopri pordi oprdi prodi rpodi orpdi ropdi pdroi dproi prdoi rpdoi drpoi rdpoi odrpi dorpi ordpi rodpi dropi rdopi poird opird piord ipord oiprd ioprd porid oprid proid rpoid orpid ropid pirod iprod priod rpiod irpod ripod oirpd iorpd oripd roipd iropd riopd pdiro dpiro pidro ipdro dipro idpro pdrio dprio prdio rpdio drpio rdpio pirdo iprdo prido rpido irpdo ripdo dirpo idrpo dripo rdipo irdpo ridpo odirp doirp oidrp iodrp diorp idorp odrip dorip ordip rodip droip rdoip oirdp iordp oridp roidp irodp riodp dirop idrop driop rdiop irdop ridop
Note: these 'words' (valid or invalid) are all the permutations of the word podir. These words are obtained by scrambling the letters in podir.