b-p bbb bbd bbi bbo bbp bbr bbs bby bdb bdd bdi bdo bdp bdr bds bdy bi- bib bid bii bio bip bir bis biy bob bod boi boo bop bor bos boy bpb bpd bpi bpo bpp bpr bps bpy brb brd bri bro brp brr brs bry bsb bsd bsi bso bsp bsr bss bsy by- byd byi byo byp byr bys dbb dbd dbi dbo dbp dbr dbs dby ddb ddd ddi ddo ddp ddr dds ddy di- dib did dii dio dip dir dis diy dob dod doi doo dop dor dos doy dpb dpd dpi dpo dpp dpr dps drb drd dri dro drp drr drs dry dsb dsd dsi dso dsp dsr dss dsy dy- dyb dyd dyo dyp dyr dys dyy i-d ibb ibd ibi ibo ibp ibr ibs iby idb idd idi ido idp idr ids idy iib iid iii iio iip iir iis io- iob iod ioi ioo iop ior ios ipb ipd ipi ipo ipp ipr ips ipy ir- irb ird iri iro irp irr irs iry is- isb isd isi iso isp isr iss isy iyo iyr iys iyy o-i ob- obb obd obi obo obp obr obs oby odb odd odi odo odp odr ods oib oid oii oio oip oir ois oo- oob ood ooi ooo oop oor oos op- opb opd opi opo opp opr ops opy or- orb ord ori oro orp orr ors ory os- osb osd osi oso osp osr oss oyd oyi oyo oys p-p pbb pbd pbi pbo pbp pbr pbs pby pdb pdd pdi pdo pdp pdr pds pib pid pii pio pip pir pis pob pod poi poo pop por pos poy ppb ppd ppi ppo ppp ppr pps prb prd pri pro prp prr prs pry ps- psb psd psi pso psp psr pss psy py- pyb pyd pyo pyr pys rbb rbd rbi rbo rbp rbr rbs rdb rdd rdi rdo rdp rdr rds rdy rib rid rii rio rip rir ris riy rob rod roi roo rop ror ros roy rpb rpd rpi rpo rpp rpr rps rrb rrd rri rrp rrr rrs rsb rsd rsi rso rsp rsr rss ry- ryd ryo ryr rys ryy sbb sbd sbi sbo sbp sbr sbs sby sdb sdd sdi sdo sdp sdr sds sdy sib sid sii sio sip sir sis sob sod soi soo sop sor sos soy spb spd spi spo spp spr sps spy sr- srb srd sri sro srp srr srs sry ss- ssb ssd ssi sso ssp ssr sss sy- syb syd syi syp syr sys ybi ybp ybr ybs yby ydo yds ydy yid yii yio yip yir yis yob yod yoi yoo yop yor yos yoy ypd ypo yps yro yrp yrs ysb ysi yso ysp ysr yss ysy yyb yys yyy