bbb bbd bbg bbi bby bdb bdd bdg bdi bdv bdy bgb bgd bgg bgi bgv bi- bib bid big bii biv biy bvb bvd bvg bvi bvv by- byd byg byi dbb dbd dbg dbi dbv dby ddb ddd ddg ddi ddy dgd dgg dgi di- dib did dig dii div diy dvb dvd dvg dvi dy- dyb dyd dyy g-d gbd gbg gbi gbv gby gdb gdd gdi gdv ggb ggd ggg ggi ggv gib gid gig gii giv giy gvb gvd gvg gvi gy- gyb gyd i-d i-v ibb ibd ibg ibi ibv iby idb idd idg idi idv idy igb igd igg igi igy iib iid iii ivb ivd ivg ivi ivv ivy iyy vbd vbg vbi vbv vdb vdd vdg vdi vdv vgg vi- vib vid vig vii viv viy vvb vvg vvi vvv vyd vyg ybg ybi yby ydg ydy yid yig yii yvi yvy yyb yyg yyy