-er -ol b-p bbb bbd bbe bbl bbo bbp bbr bdb bdd bde bdl bdo bdp bdr be- beb bed bee bel beo bep ber blb bld ble bll blo blp blr bob bod boe bol boo bop bor bpb bpd bpe bpl bpo bpp bpr brb brd bre brl bro brp brr dbb dbd dbe dbl dbo dbp dbr ddb ddd dde ddl ddo ddp ddr de- deb ded dee del deo dep der dl- dlb dld dle dll dlo dlp dlr dob dod doe dol doo dop dor dpb dpd dpe dpl dpo dpp dpr drb drd dre drl dro drp drr ebb ebd ebe ebl ebo ebp ebr ed- edb edd ede edl edo edp edr eeb eed eee eel eeo eep eer elb eld ele ell elo elp elr eo- eob eod eoe eol eoo eop eor ep- epb epd epe epl epo epp epr erb erd ere erl ero erp err l-p lbb lbd lbe lbl lbo lbp lbr ldb ldd lde ldl ldo ldp ldr leb led lee lel leo lep ler llb lld lle lll llo llp llr lob lod loe lol loo lop lor lpb lpd lpe lpl lpo lpp lpr lrb lrd lro lrp lrr ob- obb obd obe obl obo obp obr odb odd ode odl odo odp odr oeb oed oee oel oeo oep oer olb old ole oll olo olp oo- oob ood ool ooo oop oor op- opb opd ope opl opo opp opr or- orb ord ore orl oro orp orr p-p pbb pbd pbe pbl pbo pbp pbr pdb pdd pde pdl pdo pdp pdr peb ped pee pel peo pep per plb pld ple pll plo plp plr pob pod poe pol poo pop por ppb ppd ppe ppl ppo ppp ppr prb prd pre prl pro prp prr rbb rbd rbe rbl rbo rbp rbr rdb rdd rde rdl rdo rdp rdr re- reb red ree rel reo rep rer rld rle rll rlo rlp rlr rob rod roe rol roo rop ror rpb rpd rpe rpl rpo rpp rpr rrb rrd rrl rrp rrr