-er -ey b-p bbb bbe bbg bbo bbp bbr bby be- beb bee beg beo bep ber bey bgb bge bgg bgo bgp bgr bob boe bog boo bop bor boy bpb bpe bpg bpo bpp bpr bpy brb bre brg bro brp brr bry by- bye byg byo byp byr ebb ebe ebg ebo ebp ebr eby eeb eee eeg eeo eep eer eey egb ege egg ego egp egr egy eo- eob eoe eog eoo eop eor ep- epb epe epg epo epp epr erb ere erg ero erp err ery eye eyo eyp eyr g-p gbe gbg gbo gbp gbr gby ge- geb gee geg geo gep ger gey ggb ggg ggo ggp ggr gob goe gog goo gop gor goy gpb gpe gpg gpo gpp gpr grb gre grg gro grp grr gry gy- gyb gye gyo gyp gyr ob- obb obe obg obo obp obr oby oeb oee oeg oeo oep oer oey oge ogg ogo ogp ogy oo- oob oog ooo oop oor op- opb ope opg opo opp opr opy or- orb ore org oro orp orr ory oye oyo p-p pbb pbe pbg pbo pbp pbr pby peb pee peg peo pep per pey pgb pge pgg pgo pgp pgr pgy pob poe pog poo pop por poy ppb ppe ppg ppo ppp ppr prb pre prg pro prp prr pry py- pyb pye pyg pyo pyr rbb rbe rbg rbo rbp rbr re- reb ree reg reo rep rer rey rgb rge rgg rgo rgp rgr rob roe rog roo rop ror roy rpb rpe rpg rpo rpp rpr rrb rrg rrp rrr ry- rye ryg ryo ryr ryy ybe ybg ybp ybr yby yeb yee yeg yeo yep yer yey ygo yob yoe yog yoo yop yor yoy ypg ypo yre yrg yro yrp yyb yye yyg yyy