-er ddd dde ddk ddl ddm ddr dds ddt ddu de- ded dee dek del dem der des det deu dke dkk dkl dkm dkr dks dkt dku dl- dld dle dlk dll dlm dlr dls dlt dlu dmd dme dmk dml dmm dmr dms dmt dmu drd dre drk drl drm drr drs drt dru dsd dse dsk dsl dsm dsr dss dst dsu dtd dte dtk dtl dtm dtr dts dtt dtu dud due duk dul dum dur dus dut ed- edd ede edk edl edm edr eds edt edu eed eee eek eel eem eer ees eet ekd eke ekl ekr eks ekt eku eld ele elk ell elm elr els elt elu em- emd eme emk eml emm emr ems emt emu erd ere erk erl erm err ers ert eru es- esd ese esk esl esm esr ess est esu etd ete etk etl etm etr ets ett etu eu- eud eue eul eur eus eut k-t kde kdk kdl kdm kdr kds kdt kdu ke- ked kee kek kel kem ker kes ket kke kkk kkl kkm kkr kks kkt kku kl- kld klm klr kls klt klu kmd kme kmk kml kmm kms kmt kmu krd krk krl krr krs krt kru ksd kse ksk ksl ksm ksr kss kst ksu kte ktk ktl ktm ktr kts ktt ktu kud kue kuk kul kum kur kus kut kuu ldd lde ldk ldl ldm ldr lds ldt ldu led lee lek lel lem ler les let leu lkl lkr lks lkt lld lle llk lll llm llr lls llt llu lmd lme lmk lml lmm lmr lms lmt lmu lrd lrk lrm lrr lrs lrt lru lsd lse lsk lsl lsm lsr lss lst lsu ltd lte ltk ltl ltm ltr lts ltt ltu lud lue luk lul lum lur lus lut luu m-r mdd mde mdk mdl mdm mdr mds mdt mdu med mee mek mel mem mer mes met meu mkd mke mkk mkl mkm mkr mks mkt mku mld mle mlk mll mlm mlr mls mlt mlu mmd mme mmk mml mmm mmr mms mmt mmu mrd mre mrk mrl mrm mrr mrs mrt mru msd mse msk msl msm msr mss mst msu mtd mte mtk mtl mtm mtr mts mtt mtu mud mue muk mul mum mur mus mut muu rdd rde rdl rdm rdr rds rdt rdu re- red ree rek rel rem rer res ret reu rke rkk rkm rks rkt rku rld rle rll rlm rlr rls rlt rlu rmd rme rml rmm rmr rms rmt rrd rrk rrl rrm rrr rrs rrt rru rsd rse rsk rsl rsm rsr rss rst rsu rtd rte rtk rtl rtm rtr rts rtt rtu rud rue ruk rum rur rus rut ruu sdd sde sdk sdl sdm sdr sds sdt sdu se- sed see sek sel sem ser ses set seu sk- skd ske skk skl skm skr sks skt sku sld sle slk sll slm slr sls slt slu smd sme smk sml smm smr sms smt smu sr- srd sre srk srl srm srr srs srt ss- ssd sse ssk ssl ssm ssr sss sst ssu std ste stk stl stm str sts stt stu sud sue suk sul sum sur sus sut suu tdd tde tdk tdl tdm tdr tds tdt tdu te- ted tee tek tel tem ter tes tet teu tke tkk tkl tkm tkr tks tkt tld tle tlk tll tlm tlr tls tlt tlu tmd tme tmk tml tmm tmr tms tmt tmu trd tre trk trl trm trr trs trt tru tsd tse tsk tsl tsm tsr tss tst tsu ttd tte ttk ttl ttm ttr tts ttt ttu tud tue tuk tul tum tur tus tut tuu udd ude udk udl udm udr uds udt udu ued uee uel uem uer ues uet uke ukk ukl ukr uku uld ule ulk ull ulm ulr uls ult ulu um- umd ume uml umm umr ums umt umu ur- urd ure urk url urm urr urs urt uru usd use usk usl usm usr uss ust usu utd ute utk utl utm utr uts utt utu uue uum uur uus uut uuu