-ol b-p bbb bbd bbe bbl bbo bbp bdb bdd bde bdl bdo bdp be- beb bed bee bel beo bep blb bld ble bll blo blp bob bod boe bol boo bop bpb bpd bpe bpl bpo bpp dbb dbd dbe dbl dbo dbp ddb ddd dde ddl ddo ddp de- deb ded dee del deo dep dl- dlb dld dle dll dlo dlp dob dod doe dol doo dop dpb dpd dpe dpl dpo dpp ebb ebd ebe ebl ebo ebp ed- edb edd ede edl edo edp eeb eed eee eel eeo eep elb eld ele ell elo elp eo- eob eod eoe eol eoo eop ep- epb epd epe epl epo epp l-p lbb lbd lbe lbl lbo lbp ldb ldd lde ldl ldo ldp leb led lee lel leo lep llb lld lle lll llo llp lob lod loe lol loo lop lpb lpd lpe lpl lpo lpp ob- obb obd obe obl obo obp odb odd ode odl odo odp oeb oed oee oel oeo oep olb old ole oll olo olp oo- oob ood ool ooo oop op- opb opd ope opl opo opp p-p pbb pbd pbe pbl pbo pbp pdb pdd pde pdl pdo pdp peb ped pee pel peo pep plb pld ple pll plo plp pob pod poe pol poo pop ppb ppd ppe ppl ppo ppp