-ey b-p bbb bbe bbg bbo bbp bby be- beb bee beg beo bep bey bgb bge bgg bgo bgp bob boe bog boo bop boy bpb bpe bpg bpo bpp bpy by- bye byg byo byp ebb ebe ebg ebo ebp eby eeb eee eeg eeo eep eey egb ege egg ego egp egy eo- eob eoe eog eoo eop ep- epb epe epg epo epp eye eyo eyp g-p gbe gbg gbo gbp gby ge- geb gee geg geo gep gey ggb ggg ggo ggp gob goe gog goo gop goy gpb gpe gpg gpo gpp gy- gyb gye gyo gyp ob- obb obe obg obo obp oby oeb oee oeg oeo oep oey oge ogg ogo ogp ogy oo- oob oog ooo oop op- opb ope opg opo opp opy oye oyo p-p pbb pbe pbg pbo pbp pby peb pee peg peo pep pey pgb pge pgg pgo pgp pgy pob poe pog poo pop poy ppb ppe ppg ppo ppp py- pyb pye pyg pyo ybe ybg ybp yby yeb yee yeg yeo yep yey ygo yob yoe yog yoo yop yoy ypg ypo yyb yye yyg yyy