bbbb bbbq bbdd bbdo bobb bobo bobu bodb bodo bodu boko boku boob bood book boop booz bopp boud bouk boup bozo bubb bubo bubq bubu budb budd budo budu bukk buko buku buuz buzz bzou bzzz d-bo dbpd dddd ddpo ddub dobb dobu dod- dodd dodo doko doob dood dook doop dopo dopp doub doud douk doup douz dozo dqdb dub- dubb dubu dudd dudo dudu duku duo- dupo duqu dzbb dzok dzud dzup kbbb kbbd kbbk kbbo kbbu kbbz kbdb kbdo kbdz kbkb kbkk kbko kbkz kbob kbod kbok kboo kboq kboz kbpk kbpo kbpu kbqb kbub kbud kbuk kbup kbuu kbuz kbzd kbzo kbzq kbzu kbzz kdbb kddb kddd kddk kddq kdkb kdkd kdkk kdko kdok kdub kdup kduz kdzz kkbb kkbd kkbo kkbq kkbz kkdd kkdo kkdq kkdz kkkk kkob kkoo kkoz kkpk kkpz kkqq kkup kkuu kkzq kkzu kkzz kobb kobk kobo kobu kodk kodo kodu kodz kokb kokk koko kokp koku kokz koob kook kooo koop kooq koou kooz kopb kopp kopu koub kouu kozb kozk kozo kozu kpbb kpbd kpbz kpdb kpdo kpdq kpkk kpob kpod kpok kpoo kpop kpou kppd kppk kppo kppp kpub kpzk kqbb kqbk kqbo kqbu kqbz kqkd kqkk kqob kqod kqqk kqqq kqqz kqup kqzz kubb kubd kubo kubq kubu kudd kudo kudu kukk kuku kuok kuoo kuop kupb kupd kupu kuqo kuqq kuub kuuk kuuu kuuz kuzu kuzz kzbb kzbd kzbk kzbq kzbz kzkz kzoo kzoz kzpk kzpo kzqd kzqq kzqz kzuu kzuz kzzb kzzd kzzk kzzo kzzp kzzq kzzz obbo obkb obok oboq odbo oddd odoo odop odou okko okok okpo ooku oooo opo- oppo ouu- ouzo ozd pbpk pobo pod- podd podo podu poko poku pood pook poop pop- popo popp poud pouk poup pozo ppdk ppod pppd pppo pppp pubu pudo pudu puku pupu puzo qobu qoob qoop qpod qppb qqqq qubo quob quod quok quop quoz quu- ubbo ubod ubud udoo udop udpd uduk ukko ukok ukup updo uppp uppu upup uuuu zobo zodd zoku zoo- zook zoop zouk zozo zozu zubo zubu zuko zuoz zuuk zuzu zzzz