-er -ey bbb bbe bbg bbn bbo bbr bby be- beb bee beg ben beo ber bey bgb bge bgg bgn bgo bgr bnb bne bng bnn bno bnr bob boe bog bon boo bor boy brb bre brg brn bro brr bry by- bye byg byn byo byr ebb ebe ebg ebn ebo ebr eby eeb eee eeg een eeo eer eey egb ege egg egn ego egr egy en- enb ene eng enn eno enr eny eo- eob eoe eog eon eoo eor erb ere erg ern ero err ery eye eyn eyo eyr gbe gbg gbn gbo gbr gby ge- geb gee geg gen geo ger gey ggb ggg ggn ggo ggr gnb gne gnn gno gnr gob goe gog gon goo gor goy grb gre grg grn gro grr gry gy- gyb gye gyn gyo gyr nbb nbe nbg nbn nbo nbr ne- neb nee neg nen neo ner ney ngb nge ngg ngn ngo nnb nne nng nnn nno no- nob noe nog non noo nor noy nrb nre nrg nrn nro nrr nry nye nyg nyn nyo nyy ob- obb obe obg obn obo obr oby oeb oee oeg oen oeo oer oey oge ogg ogn ogo ogy on- onb one ong onn ono onr ony oo- oob oog oon ooo oor or- orb ore org orn oro orr ory oye oyo rbb rbe rbg rbn rbo rbr re- reb ree reg ren reo rer rey rgb rge rgg rgn rgo rgr rnb rng rnn rno rnr rny rob roe rog ron roo ror roy rrb rrg rrn rrr ry- rye ryg ryn ryo ryr ryy ybe ybg ybr yby yeb yee yeg yen yeo yer yey ygo yne yng ynn yny yob yoe yog yon yoo yor yoy yre yrg yrn yro yyb yye yyg yyy