-er -ol ddd dde ddi ddk ddl ddo ddr dds ddt de- ded dee dei dek del deo der des det di- did die dii dik dil dio dir dis dit dke dki dkk dkl dko dkr dks dkt dl- dld dle dli dlk dll dlo dlr dls dlt dod doe doi dok dol doo dor dos dot drd dre dri drk drl dro drr drs drt dsd dse dsi dsk dsl dso dsr dss dst dtd dte dti dtk dtl dto dtr dts dtt ed- edd ede edi edk edl edo edr eds edt eed eee eek eel eeo eer ees eet eid eie eii eik eil eio eir eis eit ekd eke eki ekl eko ekr eks ekt eld ele eli elk ell elo elr els elt eo- eod eoe eoi eok eol eoo eor eos eot erd ere eri erk erl ero err ers ert es- esd ese esi esk esl eso esr ess est etd ete eti etk etl eto etr ets ett i-d idd ide idi idk idl ido idr ids idt ie- ied iee iei iek iel ier ies iet iid iie iii iil iio iir iis iit ike iki ikk ikl iko ikr iks ikt il- ild ile ili ilk ill ilo ilr ils ilt io- iod ioe ioi iol ioo ior ios iot ir- ird ire iri irk irl iro irr irs irt is- isd ise isi isk isl iso isr iss ist itd ite iti itk itl ito its itt k-t kde kdk kdl kdo kdr kds kdt ke- ked kee kei kek kel keo ker kes ket kid kie kii kik kil kio kir kis kit kke kki kkk kkl kkr kks kkt kl- kld kli klo klr kls klt kod koe koi kok kol koo kor kos kot krd kri krk krl kro krr krs krt ksd kse ksi ksk ksl kso ksr kss kst kte ktk ktl kto ktr kts ktt ldd lde ldi ldk ldl ldo ldr lds ldt led lee lei lek lel leo ler les let lid lie lii lik lil lio lir lis lit lkl lkr lks lkt lld lle lli llk lll llo llr lls llt lod loe loi lok lol loo lor los lot lrd lri lrk lro lrr lrs lrt lsd lse lsi lsk lsl lso lsr lss lst ltd lte lti ltk ltl lto ltr lts ltt o-i odd ode odi odl odo odr ods odt oed oee oei oel oeo oer oes oet oid oie oii oik oil oio oir ois oit okd oke oki okk okl oko okr oks old ole oli olk oll olo ols olt oo- ood ooi ook ool ooo oor oos oot or- ord ore ori ork orl oro orr ors ort os- osd ose osi osk osl oso osr oss ost ot- otd ote oti otk otl oto otr ots ott rdd rde rdi rdl rdo rdr rds rdt re- red ree rei rek rel reo rer res ret rid rie rii rik ril rio rir ris rit rke rkk rko rks rkt rld rle rli rll rlo rlr rls rlt rod roe roi rok rol roo ror ros rot rrd rri rrk rrl rrr rrs rrt rsd rse rsi rsk rsl rso rsr rss rst rtd rte rti rtk rtl rto rtr rts rtt sdd sde sdi sdk sdl sdo sdr sds sdt se- sed see sei sek sel seo ser ses set sid sie sii sik sil sio sir sis sit sk- skd ske ski skk skl sko skr sks skt sld sle sli slk sll slo slr sls slt sod soe soi sok sol soo sor sos sot sr- srd sre sri srk srl sro srr srs srt ss- ssd sse ssi ssk ssl sso ssr sss sst std ste sti stk stl sto str sts stt tdd tde tdi tdk tdl tdo tdr tds tdt te- ted tee tei tek tel teo ter tes tet tid tie tii tik til tio tir tis tit tke tkk tkl tko tkr tks tkt tld tle tli tlk tll tlo tlr tls tlt to- tod toe toi tok tol too tor tos tot trd tre tri trk trl tro trr trs trt tsd tse tsi tsk tsl tso tsr tss tst ttd tte tti ttk ttl tto ttr tts ttt