-er -up ddd dde ddl ddp ddr dds ddu ddx de- ded dee del dep der des deu dex dl- dld dle dll dlp dlr dls dlu dlx dpd dpe dpl dpp dpr dps dpu drd dre drl drp drr drs dru drx dsd dse dsl dsp dsr dss dsu dsx dud due dul dup dur dus dux dxd dxl dxp dxr dxs dxx ed- edd ede edl edp edr eds edu edx eed eee eel eep eer ees eex eld ele ell elp elr els elu elx ep- epd epe epl epp epr eps epu epx erd ere erl erp err ers eru es- esd ese esl esp esr ess esu esx eu- eud eue eul eup eur eus eux ex- exd exe exl exp exr exs exu exx l-p ldd lde ldl ldp ldr lds ldu led lee lel lep ler les leu lex lld lle lll llp llr lls llu lpd lpe lpl lpp lpr lps lpu lpx lrd lrp lrr lrs lru lsd lse lsl lsp lsr lss lsu lud lue lul lup lur lus luu lux lxd lxr lxx p-p pdd pde pdl pdp pdr pds pdu pdx ped pee pel pep per pes peu pex pld ple pll plp plr pls plu plx ppd ppe ppl ppp ppr pps ppu ppx prd pre prl prp prr prs pru prx ps- psd pse psl psp psr pss psu psx pud pue pul pup pur pus puu pxe pxl pxr pxs rdd rde rdl rdp rdr rds rdu rdx re- red ree rel rep rer res reu rex rld rle rll rlp rlr rls rlu rpd rpe rpl rpp rpr rps rpu rpx rrd rrl rrp rrr rrs rru rsd rse rsl rsp rsr rss rsu rsx rud rue rup rur rus ruu rux rxp rxr rxs sdd sde sdl sdp sdr sds sdu se- sed see sel sep ser ses seu sex sld sle sll slp slr sls slu slx spd spe spl spp spr sps spu spx sr- srd sre srl srp srr srs srx ss- ssd sse ssl ssp ssr sss ssu ssx sud sue sul sup sur sus suu sux sxl sxs sxu udd ude udl udp udr uds udu udx ued uee uel uep uer ues uld ule ull ulp ulr uls ulu up- upd upe upp upr ups upu upx ur- urd ure url urp urr urs uru urx usd use usl usp usr uss usu usx uue uur uus uuu uxr uxu xde xdr xds xed xee xel xep xer xes xeu xex xld xlr xls xpd xpe xpl xpp xps xrd xrx xsl xsp xss xue xul xup xus xxl xxp xxx