-er -ol b-p bbb bbe bbg bbl bbo bbp bbr be- beb bee beg bel beo bep ber bgb bge bgg bgl bgo bgp bgr blb ble blg bll blo blp blr bob boe bog bol boo bop bor bpb bpe bpg bpl bpo bpp bpr brb bre brg brl bro brp brr ebb ebe ebg ebl ebo ebp ebr eeb eee eeg eel eeo eep eer egb ege egg egl ego egp egr elb ele elg ell elo elp elr eo- eob eoe eog eol eoo eop eor ep- epb epe epg epl epo epp epr erb ere erg erl ero erp err g-p gbe gbg gbl gbo gbp gbr ge- geb gee geg gel geo gep ger ggb ggg ggo ggp ggr glb gle glg gll glo glp glr gob goe gog gol goo gop gor gpb gpe gpg gpl gpo gpp gpr grb gre grg grl gro grp grr l-p lbb lbe lbg lbl lbo lbp lbr leb lee leg lel leo lep ler lgb lge lgg lgl lgo lgp lgr llb lle llg lll llo llp llr lob loe log lol loo lop lor lpb lpe lpg lpl lpo lpp lpr lrb lrg lro lrp lrr ob- obb obe obg obl obo obp obr oeb oee oeg oel oeo oep oer oge ogg ogl ogo ogp olb ole olg oll olo olp oo- oob oog ool ooo oop oor op- opb ope opg opl opo opp opr or- orb ore org orl oro orp orr p-p pbb pbe pbg pbl pbo pbp pbr peb pee peg pel peo pep per pgb pge pgg pgl pgo pgp pgr plb ple plg pll plo plp plr pob poe pog pol poo pop por ppb ppe ppg ppl ppo ppp ppr prb pre prg prl pro prp prr rbb rbe rbg rbl rbo rbp rbr re- reb ree reg rel reo rep rer rgb rge rgg rgo rgp rgr rle rlg rll rlo rlp rlr rob roe rog rol roo rop ror rpb rpe rpg rpl rpo rpp rpr rrb rrg rrl rrp rrr