-er ddd dde ddi ddk ddl ddp ddr de- ded dee dei dek del dep der di- did die dii dik dil dip dir dke dki dkk dkl dkp dkr dl- dld dle dli dlk dll dlp dlr dpd dpe dpi dpk dpl dpp dpr drd dre dri drk drl drp drr ed- edd ede edi edk edl edp edr eed eee eek eel eep eer eid eie eii eik eil eip eir ekd eke eki ekl ekp ekr eld ele eli elk ell elp elr ep- epd epe epi epl epp epr erd ere eri erk erl erp err i-d idd ide idi idk idl idp idr ie- ied iee iei iek iel iep ier iid iie iii iil iip iir ike iki ikk ikl ikr il- ild ile ili ilk ill ilp ilr ipd ipe ipi ipl ipp ipr ir- ird ire iri irk irl irp irr kde kdk kdl kdp kdr ke- ked kee kei kek kel kep ker kid kie kii kik kil kip kir kke kki kkk kkl kkp kkr kl- kld kli klr kpd kpe kpi kpk kpl kpp kpr krd kri krk krl krp krr l-p ldd lde ldi ldk ldl ldp ldr led lee lei lek lel lep ler lid lie lii lik lil lip lir lkl lkp lkr lld lle lli llk lll llp llr lpd lpe lpi lpk lpl lpp lpr lrd lri lrk lrp lrr p-p pdd pde pdi pdk pdl pdp pdr ped pee pei pek pel pep per pid pie pii pik pil pip pir pkd pke pki pkl pkp pkr pld ple pli plk pll plp plr ppd ppe ppi ppk ppl ppp ppr prd pre pri prk prl prp prr rdd rde rdi rdl rdp rdr re- red ree rei rek rel rep rer rid rie rii rik ril rip rir rke rkk rkp rld rle rli rll rlp rlr rpd rpe rpi rpk rpl rpp rpr rrd rri rrk rrl rrp rrr