-er ddd dde ddi ddl ddp ddr dds ddz de- ded dee dei del dep der des dez di- did die dii dil dip dir dis diz dl- dld dle dli dll dlp dlr dls dpd dpe dpi dpl dpp dpr dps dpz drd dre dri drl drp drr drs drz dsd dse dsi dsl dsp dsr dss dsz dzd dze dzi dzp dzr dzs ed- edd ede edi edl edp edr eds eed eee eel eep eer ees eid eie eii eil eip eir eis eld ele eli ell elp elr els elz ep- epd epe epi epl epp epr eps epz erd ere eri erl erp err ers erz es- esd ese esi esl esp esr ess eze ezr ezs ezz i-d idd ide idi idl idp idr ids ie- ied iee iei iel iep ier ies iid iie iii iil iip iir iis il- ild ile ili ill ilp ilr ils ilz ipd ipe ipi ipl ipp ipr ips ir- ird ire iri irl irp irr irs is- isd ise isi isl isp isr iss ize izi izz l-p ldd lde ldi ldl ldp ldr lds led lee lei lel lep ler les lez lid lie lii lil lip lir lis liz lld lle lli lll llp llr lls llz lpd lpe lpi lpl lpp lpr lps lpz lrd lri lrp lrr lrs lrz lsd lse lsi lsl lsp lsr lss lsz lzi lzr lzs p-p pdd pde pdi pdl pdp pdr pds pdz ped pee pei pel pep per pes pez pid pie pii pil pip pir pis piz pld ple pli pll plp plr pls plz ppd ppe ppi ppl ppp ppr pps ppz prd pre pri prl prp prr prs prz ps- psd pse psi psl psp psr pss pzl pzp rdd rde rdi rdl rdp rdr rds re- red ree rei rel rep rer res rez rid rie rii ril rip rir ris riz rld rle rli rll rlp rlr rls rpd rpe rpi rpl rpp rpr rps rpz rrd rri rrl rrp rrr rrs rsd rse rsi rsl rsp rsr rss rze sdd sde sdi sdl sdp sdr sds sdz se- sed see sei sel sep ser ses sez sid sie sii sil sip sir sis sld sle sli sll slp slr sls spd spe spi spl spp spr sps spz sr- srd sre sri srl srp srr srs ss- ssd sse ssi ssl ssp ssr sss ssz szd sze szi szl szp szr zds zed zee zel zep zer zes zez zid zie zil zip zir zis ziz zlr zpe zpi zpl zpp zpr zrl zrp zrs zse zsi zsl zsz zzr zzs zzz