-er ddd dde ddi ddk ddl ddr de- ded dee dei dek del der di- did die dii dik dil dir dke dki dkk dkl dkr dl- dld dle dli dlk dll dlr drd dre dri drk drl drr ed- edd ede edi edk edl edr eed eee eek eel eer eid eie eii eik eil eir ekd eke eki ekl ekr eld ele eli elk ell elr erd ere eri erk erl err i-d idd ide idi idk idl idr ie- ied iee iei iek iel ier iid iie iii iil iir ike iki ikk ikl ikr il- ild ile ili ilk ill ilr ir- ird ire iri irk irl irr kde kdk kdl kdr ke- ked kee kei kek kel ker kid kie kii kik kil kir kke kki kkk kkl kkr kl- kld kli klr krd kri krk krl krr ldd lde ldi ldk ldl ldr led lee lei lek lel ler lid lie lii lik lil lir lkl lkr lld lle lli llk lll llr lrd lri lrk lrr rdd rde rdi rdl rdr re- red ree rei rek rel rer rid rie rii rik ril rir rke rkk rld rle rli rll rlr rrd rri rrk rrl rrr