b-u bbb bbg bbi bbm bbr bbs bbu bby bgb bgg bgi bgm bgr bgs bgu bi- bib big bii bim bir bis biu biy bmb bmg bmi bmm bmr bms bmu brb brg bri brm brr brs bru bry bsb bsg bsi bsm bsr bss bsu bsy bub bug bui bum bur bus buu buy by- byg byi bym byr bys byu gbg gbi gbm gbr gbs gbu gby ggb ggg ggi ggm ggr ggs ggu gib gig gii gim gir gis giu giy gmb gmg gmi gmm gmr gms gmy grb grg gri grm grr grs gru gry gsb gsg gsi gsm gsr gss gsu gu- gub gug gui gum gur gus guu guy gy- gyb gym gyr gys ibb ibg ibi ibm ibr ibs ibu iby igb igg igi igm igr igs igu igy iib iii iim iir iis iiu im- imb img imi imm ims imu imy ir- irb irg iri irm irr irs iru iry is- isb isg isi ism isr iss isu isy iu- iub iug iui ium iur ius iym iyr iys iyy m-r mbb mbg mbi mbm mbr mbs mbu mgb mgi mgm mgr mgs mgu mgy mi- mib mig mii mim mir mis miu miy mmb mmg mmi mmm mmr mms mmu mrb mrg mri mrm mrr mrs mru mry msb msg msi msm msr mss msu msy mub mug mui mum mur mus muu muy my- myb myg mym myr mys myu rbb rbg rbi rbm rbr rbs rbu rgb rgg rgi rgr rgs rib rig rii rim rir ris riy rmb rmg rmi rmm rmr rms rrb rrg rri rrm rrr rrs rru rsb rsg rsi rsm rsr rss rsu rub rug rui rum rur rus ruu ruy ry- ryg rym ryr rys ryu ryy sbb sbg sbi sbm sbr sbs sbu sby sgb sgg sgi sgm sgr sgs sgu sib sig sii sim sir sis siu smb smg smi smm smr sms smu smy sr- srb srg sri srm srr srs sry ss- ssb ssg ssi ssm ssr sss ssu sub sug sui sum sur sus suu suy sy- syb syg syi sym syr sys syu ubb ubg ubi ubr ubs ubu uby ugb ugg ugi ugm ugr ugs ugu uib uig uii uim uir uis uiu um- umb umg umi umm umr ums umu ur- urb urg uri urm urr urs uru ury usb usg usi usm usr uss usu uug uum uur uus uuu uyi uys uyu ybg ybi ybm ybr ybs yby ygm yig yii yim yir yis ymg ymi ymm yms yrg yrs yru ysb ysg ysi ysm ysr yss ysu ysy yug yui yum yur yus yuu yuy yyb yyg yys yyu yyy