-er a-a a-t aaa aad aae aak aao aar aas aat ad- ada add ade adk ado adr ads adt aea aed aee aek aeo aer aes aet aka akd ake akk ako akr aks aoa aod aoe aok aoo aor aos aot ar- ara ard are ark aro arr ars art as- asa asd ase ask aso asr ass ast at- ata atd ate ato atr ats att daa dad dae dak dao dar das dat dda ddd dde ddk ddo ddr dds ddt de- dea ded dee dek deo der des det dka dke dkk dko dkr dks dkt doa dod doe dok doo dor dos dot dra drd dre drk dro drr drs drt dsa dsd dse dsk dso dsr dss dst dta dtd dte dtk dto dtr dts dtt eaa ead eae eak eao ear eas eat ed- eda edd ede edk edo edr eds edt eea eed eee eek eeo eer ees eet eka ekd eke eko ekr eks ekt eo- eoa eod eoe eok eoo eor eos eot era erd ere erk ero err ers ert es- esa esd ese esk eso esr ess est eta etd ete etk eto etr ets ett k-t ka- kaa kad kae kak kao kar kas kat kda kde kdk kdo kdr kds kdt ke- kea ked kee kek keo ker kes ket kke kkk kkr kks kkt koa kod koe kok koo kor kos kot kra krd krk kro krr krs krt ksa ksd kse ksk kso ksr kss kst kta kte ktk kto ktr kts ktt oaa oad oae oak oao oar oas oat oda odd ode odo odr ods odt oea oed oee oeo oer oes oet oka okd oke okk oko okr oks oo- ooa ood ook ooo oor oos oot or- ora ord ore ork oro orr ors ort os- osa osd ose osk oso osr oss ost ot- ota otd ote otk oto otr ots ott ra- raa rad rae rak rao rar ras rat rda rdd rde rdo rdr rds rdt re- rea red ree rek reo rer res ret rke rkk rko rks rkt roa rod roe rok roo ror ros rot rra rrd rrk rrr rrs rrt rsa rsd rse rsk rso rsr rss rst rta rtd rte rtk rto rtr rts rtt saa sad sae sak sao sar sas sat sda sdd sde sdk sdo sdr sds sdt se- sea sed see sek seo ser ses set sk- ska skd ske skk sko skr sks skt soa sod soe sok soo sor sos sot sr- sra srd sre srk sro srr srs srt ss- ssa ssd sse ssk sso ssr sss sst sta std ste stk sto str sts stt taa tad tae tak tao tar tas tat tda tdd tde tdk tdo tdr tds tdt te- tea ted tee tek teo ter tes tet tka tke tkk tko tkr tks tkt to- toa tod toe tok too tor tos tot tra trd tre trk tro trr trs trt tsa tsd tse tsk tso tsr tss tst tta ttd tte ttk tto ttr tts ttt