-ey bbb bbe bbg bbo bbt bby be- beb bee beg beo bet bey bgb bge bgg bgo bgt bob boe bog boo bot boy btb bte btg bto btt bty by- bye byg byo byt ebb ebe ebg ebo ebt eby eeb eee eeg eeo eet eey egb ege egg ego egt egy eo- eob eoe eog eoo eot etb ete etg eto ett ety eye eyo eyt gbe gbg gbo gbt gby ge- geb gee geg geo get gey ggb ggg ggo ggt gob goe gog goo got goy gtb gte gtg gto gtt gty gy- gyb gye gyo ob- obb obe obg obo obt oby oeb oee oeg oeo oet oey oge ogg ogo ogt ogy oo- oob oog ooo oot ot- otb ote otg oto ott oye oyo tbb tbe tbg tbo tbt te- teb tee teg teo tet tey tgb tge tgg tgo tgt tgy to- tob toe tog too tot toy ttb tte ttg tto ttt tty tye tyg tyo tyt ybe ybg yby yeb yee yeg yeo yet yey ygo yob yoe yog yoo yot yoy yte yto ytt yyb yye yyg yyt yyy