b-u bbb bbc bbd bbg bbr bbs bbu bby bcb bcc bcd bcg bcr bcs bcu bcy bdb bdc bdd bdg bdr bds bdu bdy bgb bgc bgd bgg bgr bgs bgu brb brd brg brr brs bru bry bsb bsc bsd bsg bsr bss bsu bsy bub buc bud bug bur bus buu buy by- byc byd byg byr bys byu c-- cbb cbc cbd cbg cbr cbs cbu cby ccb ccc ccd ccg ccr ccs ccu cdb cdc cdd cdg cdr cds cdu cdy cgb cgc cgd cgg cgr cgs cgu cgy crb crc crd crg crr crs cru cry csb csc csd csg csr css csu csy cub cuc cud cug cur cus cuu cuy cyb cyc cyd cyg cyr cys dbb dbc dbd dbg dbr dbs dbu dby dcb dcc dcd dcg dcr dcs dcu ddb ddc ddd ddg ddr dds ddu ddy dgc dgd dgg dgr dgs dgu drb drc drd drg drr drs dru dry dsb dsc dsd dsg dsr dss dsu dsy dub duc dud dug dur dus duy dy- dyb dyc dyd dyr dys dyu dyy g-d gbc gbd gbg gbr gbs gbu gby gcb gcc gcd gcg gcr gcs gcu gdb gdc gdd gdr gds gdu ggb ggc ggd ggg ggr ggs ggu grb grc grd grg grr grs gru gry gsb gsc gsd gsg gsr gss gsu gu- gub guc gud gug gur gus guu guy gy- gyb gyd gyr gys rbb rbc rbd rbg rbr rbs rbu rcb rcc rcd rcg rcr rcs rcu rdb rdc rdd rdg rdr rds rdu rdy rgb rgc rgd rgg rgr rgs rrb rrc rrd rrg rrr rrs rru rsb rsc rsd rsg rsr rss rsu rub ruc rud rug rur rus ruu ruy ry- ryc ryd ryg ryr rys ryu ryy sbb sbc sbd sbg sbr sbs sbu sby scb scc scd scg scr scs scu sdb sdc sdd sdg sdr sds sdu sdy sgb sgc sgd sgg sgr sgs sgu sr- srb src srd srg srr srs sry ss- ssb ssc ssd ssg ssr sss ssu sub suc sud sug sur sus suu suy sy- syb syc syd syg syr sys syu ubb ubc ubg ubr ubs ubu uby ucb ucc ucd ucg ucr ucs ucu udb udc udd udg udr uds udu ugb ugc ugg ugr ugs ugu ur- urb urc urd urg urr urs uru ury usb usc usd usg usr uss usu uuc uug uur uus uuu uyc uys uyu ybc ybg ybr ybs yby ycc ycd ycs ycu ycy ydg yds ydy ygc yrc yrg yrs yru ysb ysc ysg ysr yss ysu ysy yud yug yur yus yuu yuy yyb yyc yyg yys yyu yyy