bbb bbd bbk bbn bbo bbr bby bdb bdd bdk bdo bdr bdy bkb bkk bkn bko bkr bnb bnd bnk bnn bno bnr bob bod bok bon boo bor boy brb brd brk brn bro brr bry by- byd byk byn byo byr dbb dbd dbk dbn dbo dbr dby ddb ddd ddk ddn ddo ddr ddy dkb dkk dko dkr dnb dnd dnk dnn dno dnr dny dob dod dok don doo dor doy drb drd drk drn dro drr dry dy- dyb dyd dyk dyn dyo dyr dyy kbb kbd kbk kbn kbo kbr kdb kdk kdo kdr kdy kkb kkk kkn kkr kky kn- knd knk knn kno knr kob kod kok kon koo kor koy krd krk krn kro krr kry kyd kyn kyo kyr nbb nbd nbk nbn nbo nbr ndb ndd ndk ndn ndo ndr ndy nkk nkn nko nkr nky nnb nnk nnn nno no- nob nod nok non noo nor noy nrb nrd nrk nrn nro nrr nry nyd nyk nyn nyo nyy ob- obb obd obk obn obo obr oby odb odd odn odo odr okb okd okk oko okr on- onb ond onk onn ono onr ony oo- oob ood ook oon ooo oor or- orb ord ork orn oro orr ory oyd oyo rbb rbd rbk rbn rbo rbr rdb rdd rdn rdo rdr rdy rkb rkk rko rky rnb rnd rnn rno rnr rny rob rod rok ron roo ror roy rrb rrd rrk rrn rrr ry- ryd ryk ryn ryo ryr ryy ybr yby ydn ydo ydy ykk ykn ynd ynk ynn yny yob yod yok yon yoo yor yoy yrn yro yyb yyy