-er ddd dde ddi ddl ddp ddr de- ded dee dei del dep der di- did die dii dil dip dir dl- dld dle dli dll dlp dlr dpd dpe dpi dpl dpp dpr drd dre dri drl drp drr ed- edd ede edi edl edp edr eed eee eel eep eer eid eie eii eil eip eir eld ele eli ell elp elr ep- epd epe epi epl epp epr erd ere eri erl erp err i-d idd ide idi idl idp idr ie- ied iee iei iel iep ier iid iie iii iil iip iir il- ild ile ili ill ilp ilr ipd ipe ipi ipl ipp ipr ir- ird ire iri irl irp irr l-p ldd lde ldi ldl ldp ldr led lee lei lel lep ler lid lie lii lil lip lir lld lle lli lll llp llr lpd lpe lpi lpl lpp lpr lrd lri lrp lrr p-p pdd pde pdi pdl pdp pdr ped pee pei pel pep per pid pie pii pil pip pir pld ple pli pll plp plr ppd ppe ppi ppl ppp ppr prd pre pri prl prp prr rdd rde rdi rdl rdp rdr re- red ree rei rel rep rer rid rie rii ril rip rir rld rle rli rll rlp rlr rpd rpe rpi rpl rpp rpr rrd rri rrl rrp rrr