bbbb bbbs bbdd bbdo bdii bdos bdsd bibb bibi bibo bibs bidi bido bids biis bio- bioi bios bipp bips bis- bisd biso bisp biss bobb bobi bobo bobs bodb bodi bodo bods boi- boid boii bois boob bood boop boos bopp bops bosi boso boss bsbd bsod bsos bspp bssd d-bo dbos dbpd dbss dddd ddpo ddps ddss dibb dibo dibp dibs didi dido dids diii diis diop dios dipo dipp dips dis- disd disi diso disp diss dobb dobi dobs dod- dodd dodi dodo dods doid dois doob dood doop doos dopo dopp dops dosi doso doss dpos dpsd dsdp dsip dsos dsps dssi dssp ibdo ibid ibis ibos ibss iddo idid idio idis idos idps idso idss iiii iiio iiis iioi iioo iiop iios iisd iisi iisp iobi iod- iodd iodo ioii ioio iooi iooo ioos iops ioso ipdi ipid ipod ipop ipos ippo ipsi ipso ipsp ipss isbd isdb isds isis iso- isop isos isps issi isso issp isss obbo obid obis oboi obos obsd obss odbo oddd oddi odds odio odis odoo odop odos odso oido oids oiii oios oisd oobi oodi ooid oooo ooos oops oosi opds opii opio opis opo- opos oppi oppo opps opsi osbp osdi osii osip osis osoi osoo osos ossb ossd ossi osso pbsp pdbs pdos pdsd pdss pibb pibi pido pids piip piob pipi pipo pipp pips pisd pisi piso piss pobo pobs pod- podd podi podo pods poid poio pois pood poop poos pop- popi popo popp pops posb posi poso poss ppds ppib ppid ppod ppos pppd pppo pppp ppps ppss psbd psdi psdp psds psid psip psis psoi psos pspi pspp psps psso s-ib s-ii s-os sbbs sbds sbsd sbsi sbsp sdds sdib sdio sdps sdss sibi sibo sibs sidd sidi sido sids siod siop sios sipi sipo sipp sips sisd sisi siss sobo sobp sobs sodd sodo sods sois sood soop soos sopd sopi sopo sopp sops sosi soso soss spdp spib spio spip spis spod spoo spop spos sppd spps spsd spso spsp spss ssdd ssdp ssid ssis ssop sspo ssps sssb sssi ssss