dddd ddpo ddps ddss didi dido dids diii diis diop dios dipo dipp dips dis- disd disi diso disp diss dod- dodd dodi dodo dods doid dois dood doop doos dopo dopp dops dosi doso doss dpos dpsd dsdp dsip dsos dsps dssi dssp iddo idid idio idis idos idps idso idss iiii iiio iiis iioi iioo iiop iios iisd iisi iisp iod- iodd iodo ioii ioio iooi iooo ioos iops ioso ipdi ipid ipod ipop ipos ippo ipsi ipso ipsp ipss isds isis iso- isop isos isps issi isso issp isss oddd oddi odds odio odis odoo odop odos odso oido oids oiii oios oisd oodi ooid oooo ooos oops oosi opds opii opio opis opo- opos oppi oppo opps opsi osdi osii osip osis osoi osoo osos ossd ossi osso pdos pdsd pdss pido pids piip pipi pipo pipp pips pisd pisi piso piss pod- podd podi podo pods poid poio pois pood poop poos pop- popi popo popp pops posi poso poss ppds ppid ppod ppos pppd pppo pppp ppps ppss psdi psdp psds psid psip psis psoi psos pspi pspp psps psso s-ii s-os sdds sdio sdps sdss sidd sidi sido sids siod siop sios sipi sipo sipp sips sisd sisi siss sodd sodo sods sois sood soop soos sopd sopi sopo sopp sops sosi soso soss spdp spio spip spis spod spoo spop spos sppd spps spsd spso spsp spss ssdd ssdp ssid ssis ssop sspo ssps sssi ssss