bbbb bbdd bbdo bbin bdii bdin bibb bibi bibo bidi bido bidu biin bin- bind bini binn bino binu bio- bioi bion biou bipp bipu bnib bnin bnpp bobb bobi bobo bobu bodb bodi bodo bodu boi- boid boii boin boiu bond boni bonn bono bonu boob bood boon boop bopp boud boun boup bubb bubi bubo bubu budb budd budi budo budu buid buin buiu bunb bund buni bunn buno bunu buon d-bo dbpd dddd ddpo ddub dibb dibo dibp didi dido didu diii din- dini dinn dino dinu dion diop diou dipn dipo dipp dipu dnpo dobb dobi dobu dod- dodd dodi dodo doid doin dond doni donn dono donp doob dood doon doop dopo dopp doub doud doun doup dpin dpni dub- dubb dubu dudd dudo dudu duid duin dunn duno duo- duon dupo i-no ibdo ibid ibon iddo idid idin idio idno idon idub idun iduo iiii iiio iino iioi iioo iiop inbd inbo ind- indi indo indu inid inni inno innu ino- inoi inon inou inp- inpi inpp inui inun inup iobi iod- iodd iodo ioii ioio ioni ionn iono iooi iooo ioun ipdi ipid ipin ipod ipop ippo iuiu iuno iupp n-ii n-up nbbo nbpp nddb nddo ndnp ndop ndpd nibi nibo nidd nidi nido niip niiu nind nini nino nion nioo niou nndb nnnn nnpi nobi nobo nobu nodi nodo nodu noib noid noin noio non- noni nonn nono nonu noo- noob noon nooo noop noun noup npin nppd nubi nudd nudi nudo nuin nunn nuno nuon obbo obid obin oboi obon odbo oddd oddi odin odio odiu odnb odon odoo odop odou oido oiii oion ondi ondo onni onno onod onon onpu onup oobi oodi ooid oooo opii opin opio opo- opon oppi oppo ouii ouin oun- ound ouu- pdpn pibb pibi pido piip pind pini pinn pino pinp pinu piob pion pipi pipo pipp pnin pnon pnpo pnpp pnup pobo pod- podd podi podo podu poid poin poio pond poni pono ponp pood poon poop pop- popi popo popp poud poui poun poup ppib ppid ppod pppd pppn pppo pppp pubu pudo pudu puid puin puiu pund puno punu pupi pupu ubbi ubbo ubid ubii ubod ubon ubud uddi udid udin udon udoo udop udpd udun uipi unbd undi undo uni- unii unin unio unni unno unon unop updo upin upnp upon uppp uppu upup uuni uuno uuuu