-ol b-p bbb bbe bbl bbn bbo bbp be- beb bee bel ben beo bep blb ble bll bln blo blp bnb bne bnl bnn bno bnp bob boe bol bon boo bop bpb bpe bpl bpn bpo bpp ebb ebe ebl ebn ebo ebp eeb eee eel een eeo eep elb ele ell eln elo elp en- enb ene enl enn eno enp eo- eob eoe eol eon eoo eop ep- epb epe epl epn epo epp l-p lbb lbe lbl lbo lbp leb lee lel len leo lep llb lle lll lln llo llp lnb lne lnl lnn lno lnp lob loe lol lon loo lop lpb lpe lpl lpn lpo lpp nbb nbe nbl nbn nbo nbp ne- neb nee nel nen neo nep nlb nle nll nln nlo nlp nnb nne nnl nnn nno nnp no- nob noe nol non noo nop npb npe npl npn npo npp ob- obb obe obl obn obo obp oeb oee oel oen oeo oep olb ole oll oln olo olp on- onb one onl onn ono onp oo- oob ool oon ooo oop op- opb ope opl opn opo opp p-p pbb pbe pbl pbn pbo pbp peb pee pel pen peo pep plb ple pll pln plo plp pn- pnb pne pnl pnn pno pnp pob poe pol pon poo pop ppb ppe ppl ppn ppo ppp