-ol b-p bbb bbd bbe bbi bbk bbl bbo bbp bdb bdd bde bdi bdk bdl bdo bdp be- beb bed bee bei bek bel beo bep bi- bib bid bie bii bik bil bio bip bkb bke bkk bkl bko bkp blb bld ble bli blk bll blo blp bob bod boe boi bok bol boo bop bpb bpd bpe bpi bpl bpo bpp dbb dbd dbe dbi dbk dbl dbo dbp ddb ddd dde ddi ddk ddl ddo ddp de- deb ded dee dei dek del deo dep di- dib did die dii dik dil dio dip dkb dke dki dkk dkl dko dkp dl- dlb dld dle dli dlk dll dlo dlp dob dod doe doi dok dol doo dop dpb dpd dpe dpi dpk dpl dpo dpp ebb ebd ebe ebi ebk ebl ebo ebp ed- edb edd ede edi edk edl edo edp eeb eed eee eek eel eeo eep eib eid eie eii eik eil eio eip ekb ekd eke eki ekl eko ekp elb eld ele eli elk ell elo elp eo- eob eod eoe eoi eok eol eoo eop ep- epb epd epe epi epl epo epp i-d ibb ibd ibe ibi ibk ibl ibo ibp idb idd ide idi idk idl ido idp ie- ied iee iei iek iel iep iib iid iie iii iil iio iip ikb ike iki ikk ikl iko il- ilb ild ile ili ilk ill ilo ilp io- iob iod ioe ioi iol ioo iop ipb ipd ipe ipi ipl ipo ipp kbb kbd kbe kbi kbk kbl kbo kbp kdb kde kdk kdl kdo kdp ke- keb ked kee kei kek kel keo kep kib kid kie kii kik kil kio kip kkb kke kki kkk kkl kkp kl- klb kld kli klo kob kod koe koi kok kol koo kop kpd kpe kpi kpk kpl kpo kpp l-p lbb lbd lbe lbi lbk lbl lbo lbp ldb ldd lde ldi ldk ldl ldo ldp leb led lee lei lek lel leo lep lib lid lie lii lik lil lio lip lkb lkl lkp llb lld lle lli llk lll llo llp lob lod loe loi lok lol loo lop lpb lpd lpe lpi lpk lpl lpo lpp o-i ob- obb obd obe obi obk obl obo obp odb odd ode odi odl odo odp oeb oed oee oei oel oeo oep oib oid oie oii oik oil oio oip okb okd oke oki okk okl oko okp olb old ole oli olk oll olo olp oo- oob ood ooi ook ool ooo oop op- opb opd ope opi opk opl opo opp p-p pbb pbd pbe pbi pbk pbl pbo pbp pdb pdd pde pdi pdk pdl pdo pdp peb ped pee pei pek pel peo pep pib pid pie pii pik pil pio pip pkb pkd pke pki pkl pko pkp plb pld ple pli plk pll plo plp pob pod poe poi pok pol poo pop ppb ppd ppe ppi ppk ppl ppo ppp