-ey bbb bbe bbg bbn bbo bby be- beb bee beg ben beo bey bgb bge bgg bgn bgo bnb bne bng bnn bno bob boe bog bon boo boy by- bye byg byn byo ebb ebe ebg ebn ebo eby eeb eee eeg een eeo eey egb ege egg egn ego egy en- enb ene eng enn eno eny eo- eob eoe eog eon eoo eye eyn eyo gbe gbg gbn gbo gby ge- geb gee geg gen geo gey ggb ggg ggn ggo gnb gne gnn gno gob goe gog gon goo goy gy- gyb gye gyn gyo nbb nbe nbg nbn nbo ne- neb nee neg nen neo ney ngb nge ngg ngn ngo nnb nne nng nnn nno no- nob noe nog non noo noy nye nyg nyn nyo nyy ob- obb obe obg obn obo oby oeb oee oeg oen oeo oey oge ogg ogn ogo ogy on- onb one ong onn ono ony oo- oob oog oon ooo oye oyo ybe ybg yby yeb yee yeg yen yeo yey ygo yne yng ynn yny yob yoe yog yon yoo yoy yyb yye yyg yyy