bbb bbg bbi bbk bbo bbr bbs bgb bgg bgi bgk bgo bgr bgs bgv bi- bib big bii bik bio bir bis biv bkb bkg bkk bko bkr bks bkv bob bog boi bok boo bor bos bov brb brg bri brk bro brr brs brv bsb bsg bsi bsk bso bsr bss bsv bvb bvg bvi bvk bvo bvr bvs bvv gbg gbi gbk gbo gbr gbs gbv ggb ggg ggi ggo ggr ggs ggv gib gig gii gik gio gir gis giv gkb gko gks gob gog goi gok goo gor gos gov grb grg gri grk gro grr grs grv gsb gsg gsi gsk gso gsr gss gsv gvb gvg gvi gvk gvo gvr gvs i-v ibb ibg ibi ibk ibo ibr ibs ibv igb igg igi igk igo igr igs iib iii iio iir iis ikb iki ikk iko ikr iks ikv io- iob iog ioi ioo ior ios iov ir- irb irg iri irk iro irr irs irv is- isb isg isi isk iso isr iss isv ivb ivg ivi ivo ivr ivs ivv kbb kbi kbk kbo kbr kbs kgb kgi kgo kgs kgv kib kig kii kik kio kir kis kiv kkb kki kkk kkr kks kkv kob kog koi kok koo kor kos krg kri krk kro krr krs krv ksb ksg ksi ksk kso ksr kss ksv kvb kvi kvk kvo kvr kvs kvv o-i ob- obb obg obi obk obo obr obs obv ogg ogi ogo ogs oib oii oik oio oir ois oiv okb okg oki okk oko okr oks oo- oob oog ooi ook ooo oor oos oov or- orb org ori ork oro orr ors orv os- osb osg osi osk oso osr oss osv ov- ovb ovi ovo ovs ovv rbb rbg rbi rbk rbo rbr rbs rgb rgg rgi rgk rgo rgr rgs rgv rib rig rii rik rio rir ris riv rkb rkg rkk rko rks rkv rob rog roi rok roo ror ros rov rrb rrg rri rrk rrr rrs rsb rsg rsi rsk rso rsr rss rsv rvb rvg rvi rvo rvr rvs rvv sbb sbg sbi sbk sbo sbr sbs sbv sgb sgg sgi sgk sgo sgr sgs sgv sib sig sii sik sio sir sis siv sk- skb skg ski skk sko skr sks sob sog soi sok soo sor sos sov sr- srb srg sri srk sro srr srs srv ss- ssb ssg ssi ssk sso ssr sss ssv svb svg svi svk svo svr svs svv vbg vbi vbk vbo vbr vbs vbv vgg vgo vgr vgs vi- vib vig vii vik vio vir vis viv vkb vkg vob vog voi vok voo vor vos vov vrb vrg vri vrk vrr vrs vsb vsg vsi vsk vso vsr vss vsv vvb vvg vvi vvo vvr vvs vvv