-er -ol ddd dde ddi ddk ddl ddo ddp ddr de- ded dee dei dek del deo dep der di- did die dii dik dil dio dip dir dke dki dkk dkl dko dkp dkr dl- dld dle dli dlk dll dlo dlp dlr dod doe doi dok dol doo dop dor dpd dpe dpi dpk dpl dpo dpp dpr drd dre dri drk drl dro drp drr ed- edd ede edi edk edl edo edp edr eed eee eek eel eeo eep eer eid eie eii eik eil eio eip eir ekd eke eki ekl eko ekp ekr eld ele eli elk ell elo elp elr eo- eod eoe eoi eok eol eoo eop eor ep- epd epe epi epl epo epp epr erd ere eri erk erl ero erp err i-d idd ide idi idk idl ido idp idr ie- ied iee iei iek iel iep ier iid iie iii iil iio iip iir ike iki ikk ikl iko ikr il- ild ile ili ilk ill ilo ilp ilr io- iod ioe ioi iol ioo iop ior ipd ipe ipi ipl ipo ipp ipr ir- ird ire iri irk irl iro irp irr kde kdk kdl kdo kdp kdr ke- ked kee kei kek kel keo kep ker kid kie kii kik kil kio kip kir kke kki kkk kkl kkp kkr kl- kld kli klo klr kod koe koi kok kol koo kop kor kpd kpe kpi kpk kpl kpo kpp kpr krd kri krk krl kro krp krr l-p ldd lde ldi ldk ldl ldo ldp ldr led lee lei lek lel leo lep ler lid lie lii lik lil lio lip lir lkl lkp lkr lld lle lli llk lll llo llp llr lod loe loi lok lol loo lop lor lpd lpe lpi lpk lpl lpo lpp lpr lrd lri lrk lro lrp lrr o-i odd ode odi odl odo odp odr oed oee oei oel oeo oep oer oid oie oii oik oil oio oip oir okd oke oki okk okl oko okp okr old ole oli olk oll olo olp oo- ood ooi ook ool ooo oop oor op- opd ope opi opk opl opo opp opr or- ord ore ori ork orl oro orp orr p-p pdd pde pdi pdk pdl pdo pdp pdr ped pee pei pek pel peo pep per pid pie pii pik pil pio pip pir pkd pke pki pkl pko pkp pkr pld ple pli plk pll plo plp plr pod poe poi pok pol poo pop por ppd ppe ppi ppk ppl ppo ppp ppr prd pre pri prk prl pro prp prr rdd rde rdi rdl rdo rdp rdr re- red ree rei rek rel reo rep rer rid rie rii rik ril rio rip rir rke rkk rko rkp rld rle rli rll rlo rlp rlr rod roe roi rok rol roo rop ror rpd rpe rpi rpk rpl rpo rpp rpr rrd rri rrk rrl rrp rrr