-er -ol ddd dde ddk ddl ddn ddo ddr dds ddt de- ded dee dek del den deo der des det dke dkk dkl dko dkr dks dkt dl- dld dle dlk dll dlo dlr dls dlt dnd dne dnk dnl dnn dno dnr dns dnt dod doe dok dol don doo dor dos dot drd dre drk drl drn dro drr drs drt dsd dse dsk dsl dsn dso dsr dss dst dtd dte dtk dtl dtn dto dtr dts dtt ed- edd ede edk edl edn edo edr eds edt eed eee eek eel een eeo eer ees eet ekd eke ekl eko ekr eks ekt eld ele elk ell eln elo elr els elt en- end ene enk enl enn eno enr ens ent eo- eod eoe eok eol eon eoo eor eos eot erd ere erk erl ern ero err ers ert es- esd ese esk esl esn eso esr ess est etd ete etk etl etn eto etr ets ett k-t kde kdk kdl kdo kdr kds kdt ke- ked kee kek kel ken keo ker kes ket kke kkk kkl kkn kkr kks kkt kl- kld klo klr kls klt kn- knd kne knk knl knn kno knr knt kod koe kok kol kon koo kor kos kot krd krk krl krn kro krr krs krt ksd kse ksk ksl ksn kso ksr kss kst kte ktk ktl ktn kto ktr kts ktt ldd lde ldk ldl ldn ldo ldr lds ldt led lee lek lel len leo ler les let lkl lkr lks lkt lld lle llk lll lln llo llr lls llt lnd lne lnk lnl lnn lno lnr lns lnt lod loe lok lol lon loo lor los lot lrd lrk lrn lro lrr lrs lrt lsd lse lsk lsl lsn lso lsr lss lst ltd lte ltk ltl lto ltr lts ltt ndd nde ndk ndl ndn ndo ndr nds ndt ne- ned nee nek nel nen neo ner nes net nke nkk nkn nko nkr nks nkt nld nle nlk nll nln nlo nlr nls nlt nne nnk nnl nnn nno nns nnt no- nod noe nok nol non noo nor nos not nrd nre nrk nrl nrn nro nrr nrs nrt nsd nse nsk nsl nsn nso nsr nss nst ntd nte ntk ntn nto ntr nts ntt odd ode odl odn odo odr ods odt oed oee oel oen oeo oer oes oet okd oke okk okl oko okr oks old ole olk oll oln olo ols olt on- ond one onk onl onn ono onr ons ont oo- ood ook ool oon ooo oor oos oot or- ord ore ork orl orn oro orr ors ort os- osd ose osk osl osn oso osr oss ost ot- otd ote otk otl otn oto otr ots ott rdd rde rdl rdn rdo rdr rds rdt re- red ree rek rel ren reo rer res ret rke rkk rko rks rkt rld rle rll rln rlo rlr rls rlt rnd rnn rno rnr rns rnt rod roe rok rol ron roo ror ros rot rrd rrk rrl rrn rrr rrs rrt rsd rse rsk rsl rsn rso rsr rss rst rtd rte rtk rtl rtn rto rtr rts rtt sdd sde sdk sdl sdn sdo sdr sds sdt se- sed see sek sel sen seo ser ses set sk- skd ske skk skl sko skr sks skt sld sle slk sll sln slo slr sls slt snd sne snk snl snn sno snr sns snt sod soe sok sol son soo sor sos sot sr- srd sre srk srl srn sro srr srs srt ss- ssd sse ssk ssl ssn sso ssr sss sst std ste stk stl stn sto str sts stt tdd tde tdk tdl tdn tdo tdr tds tdt te- ted tee tek tel ten teo ter tes tet tke tkk tkl tko tkr tks tkt tld tle tlk tll tln tlo tlr tls tlt tnd tne tnk tnl tnn tno tnr tns tnt to- tod toe tok tol ton too tor tos tot trd tre trk trl trn tro trr trs trt tsd tse tsk tsl tsn tso tsr tss tst ttd tte ttk ttl ttn tto ttr tts ttt