bbb bbg bbi bbo bbr bbt bby bgb bgg bgi bgo bgr bgt bi- bib big bii bio bir bit biy bob bog boi boo bor bot boy brb brg bri bro brr brt bry btb btg bti bto btr btt bty by- byg byi byo byr byt gbg gbi gbo gbr gbt gby ggb ggg ggi ggo ggr ggt gib gig gii gio gir git giy gob gog goi goo gor got goy grb grg gri gro grr grt gry gtb gtg gti gto gtr gtt gty gy- gyb gyo gyr ibb ibg ibi ibo ibr ibt iby igb igg igi igo igr igt igy iib iii iio iir iit io- iob iog ioi ioo ior iot ir- irb irg iri iro irr irt iry itb itg iti ito itt ity iyo iyr iyt iyy o-i ob- obb obg obi obo obr obt oby ogg ogi ogo ogt ogy oib oii oio oir oit oo- oob oog ooi ooo oor oot or- orb org ori oro orr ort ory ot- otb otg oti oto otr ott oyi oyo rbb rbg rbi rbo rbr rbt rgb rgg rgi rgo rgr rgt rib rig rii rio rir rit riy rob rog roi roo ror rot roy rrb rrg rri rrr rrt rtb rtg rti rto rtr rtt rty ry- ryg ryo ryr ryy tbb tbg tbi tbo tbr tbt tgb tgg tgi tgo tgr tgt tgy tib tig tii tio tir tit tiy to- tob tog toi too tor tot toy trb trg tri tro trr trt try ttb ttg tti tto ttr ttt tty tyg tyo tyr tyt ybg ybi ybr yby ygo yig yii yio yir yit yob yog yoi yoo yor yot yoy yrg yro yrt yto ytr ytt yyb yyg yyt yyy