-ey b-u bbb bbe bbg bbo bbu bby be- beb bee beg beo beu bey bgb bge bgg bgo bgu bob boe bog boo bou boy bub bue bug buo buu buy by- bye byg byo byu ebb ebe ebg ebo ebu eby eeb eee eeg eeo eey egb ege egg ego egu egy eo- eob eoe eog eoo eou eu- eub eue eug eye eyo gbe gbg gbo gbu gby ge- geb gee geg geo geu gey ggb ggg ggo ggu gob goe gog goo gou goy gu- gub gue gug guo guu guy gy- gyb gye gyo ob- obb obe obg obo obu oby oeb oee oeg oeo oey oge ogg ogo ogy oo- oob oog ooo ou- oue ouo oye oyo ubb ube ubg ubo ubu uby ueb uee ueg uey ugb uge ugg ugo ugu uob uoe uog uoo uue uug uuu uyo uyu ybe ybg yby yeb yee yeg yeo yey ygo yob yoe yog yoo you yoy yue yug yuo yuu yuy yyb yye yyg yyu yyy