-ey bbb bbe bbg bbi bbs bby be- beb bee beg bei bes bey bgb bge bgg bgi bgs bi- bib bie big bii bis biy bsb bse bsg bsi bss bsy by- bye byg byi bys ebb ebe ebg ebi ebs eby eeb eee eeg ees eey egb ege egg egi egs egy eib eie eig eii eis es- esb ese esg esi ess esy eye eys gbe gbg gbi gbs gby ge- geb gee geg gei ges gey ggb ggg ggi ggs gib gie gig gii gis giy gsb gse gsg gsi gss gy- gyb gye gys ibb ibe ibg ibi ibs iby ie- iee ieg iei ies iey igb ige igg igi igs igy iib iie iii iis is- isb ise isg isi iss isy iye iys iyy sbb sbe sbg sbi sbs sby se- seb see seg sei ses sey sgb sge sgg sgi sgs sib sie sig sii sis ss- ssb sse ssg ssi sss sy- syb sye syg syi sys ybe ybg ybi ybs yby yeb yee yeg yei yes yey yie yig yii yis ysb yse ysg ysi yss ysy yyb yye yyg yys yyy