-er ddd dde ddi ddl ddm ddp ddr de- ded dee dei del dem dep der di- did die dii dil dim dip dir dl- dld dle dli dll dlm dlp dlr dmd dme dmi dml dmm dmp dmr dpd dpe dpi dpl dpm dpp dpr drd dre dri drl drm drp drr ed- edd ede edi edl edm edp edr eed eee eel eem eep eer eid eie eii eil eim eip eir eld ele eli ell elm elp elr em- emd eme emi eml emm emp emr ep- epd epe epi epl epm epp epr erd ere eri erl erm erp err i-d idd ide idi idl idm idp idr ie- ied iee iei iel iem iep ier iid iie iii iil iim iip iir il- ild ile ili ill ilm ilp ilr im- imd ime imi iml imm imp ipd ipe ipi ipl ipm ipp ipr ir- ird ire iri irl irm irp irr l-p ldd lde ldi ldl ldm ldp ldr led lee lei lel lem lep ler lid lie lii lil lim lip lir lld lle lli lll llm llp llr lmd lme lmi lml lmm lmp lmr lpd lpe lpi lpl lpm lpp lpr lrd lri lrm lrp lrr m-r mdd mde mdi mdl mdm mdp mdr med mee mei mel mem mep mer mi- mid mie mii mil mim mip mir mld mle mli mll mlm mlp mlr mmd mme mmi mml mmm mmp mmr mpd mpe mpi mpl mpm mpp mpr mrd mre mri mrl mrm mrp mrr p-p pdd pde pdi pdl pdm pdp pdr ped pee pei pel pem pep per pid pie pii pil pim pip pir pld ple pli pll plm plp plr pmd pme pmi pml pmm pmp pmr ppd ppe ppi ppl ppm ppp ppr prd pre pri prl prm prp prr rdd rde rdi rdl rdm rdp rdr re- red ree rei rel rem rep rer rid rie rii ril rim rip rir rld rle rli rll rlm rlp rlr rmd rme rmi rml rmm rmp rmr rpd rpe rpi rpl rpm rpp rpr rrd rri rrl rrm rrp rrr