-er ddd dde ddi ddl ddr de- ded dee dei del der di- did die dii dil dir dl- dld dle dli dll dlr drd dre dri drl drr ed- edd ede edi edl edr eed eee eel eer eid eie eii eil eir eld ele eli ell elr erd ere eri erl err i-d idd ide idi idl idr ie- ied iee iei iel ier iid iie iii iil iir il- ild ile ili ill ilr ir- ird ire iri irl irr ldd lde ldi ldl ldr led lee lei lel ler lid lie lii lil lir lld lle lli lll llr lrd lri lrr rdd rde rdi rdl rdr re- red ree rei rel rer rid rie rii ril rir rld rle rli rll rlr rrd rri rrl rrr