bbb bbi bbm bbo bbr bbs bbt bby bi- bib bii bim bio bir bis bit biy bmb bmi bmm bmo bmr bms bmt bob boi bom boo bor bos bot boy brb bri brm bro brr brs brt bry bsb bsi bsm bso bsr bss bst bsy btb bti btm bto btr bts btt bty by- byi bym byo byr bys byt ibb ibi ibm ibo ibr ibs ibt iby iib iii iim iio iir iis iit im- imb imi imm imo ims imt imy io- iob ioi iom ioo ior ios iot ir- irb iri irm iro irr irs irt iry is- isb isi ism iso isr iss ist isy itb iti itm ito its itt ity iym iyo iyr iys iyt iyy m-o m-r mbb mbi mbm mbo mbr mbs mbt mi- mib mii mim mio mir mis mit miy mmb mmi mmm mmo mmr mms mmt mob moi mom moo mor mos mot moy mrb mri mrm mro mrr mrs mrt mry msb msi msm mso msr mss mst msy mtb mti mtm mto mtr mts mtt my- myb mym myo myr mys myt o-i ob- obb obi obm obo obr obs obt oby oib oii oim oio oir ois oit om- omb omi omm omo omr oms omt omy oo- oob ooi oom ooo oor oos oot or- orb ori orm oro orr ors ort ory os- osb osi osm oso osr oss ost ot- otb oti otm oto otr ots ott oyi oyo oys rbb rbi rbm rbo rbr rbs rbt rib rii rim rio rir ris rit riy rmb rmi rmm rmo rmr rms rmt rob roi rom roo ror ros rot roy rrb rri rrm rrr rrs rrt rsb rsi rsm rso rsr rss rst rtb rti rtm rto rtr rts rtt rty ry- rym ryo ryr rys ryy sbb sbi sbm sbo sbr sbs sbt sby sib sii sim sio sir sis sit smb smi smm smo smr sms smt smy sob soi som soo sor sos sot soy sr- srb sri srm sro srr srs srt sry ss- ssb ssi ssm sso ssr sss sst stb sti stm sto str sts stt sty sy- syb syi sym syr sys syt tbb tbi tbm tbo tbr tbs tbt tib tii tim tio tir tis tit tiy tmb tmi tmm tmo tmr tms tmt tmy to- tob toi tom too tor tos tot toy trb tri trm tro trr trs trt try tsb tsi tsm tso tsr tss tst tsy ttb tti ttm tto ttr tts ttt tty tym tyo tyr tys tyt ybi ybm ybr ybs yby yii yim yio yir yis yit ymi ymm ymo yms ymt yob yoi yom yoo yor yos yot yoy yro yrs yrt ysb ysi ysm yso ysr yss yst ysy ytm yto ytr yts ytt yyb yys yyt yyy