-er a-a a-t aaa aae aak aao aar aas aat aea aee aek aeo aer aes aet aka ake akk ako akr aks aoa aoe aok aoo aor aos aot ar- ara are ark aro arr ars art as- asa ase ask aso asr ass ast at- ata ate ato atr ats att eaa eae eak eao ear eas eat eea eee eek eeo eer ees eet eka eke eko ekr eks ekt eo- eoa eoe eok eoo eor eos eot era ere erk ero err ers ert es- esa ese esk eso esr ess est eta ete etk eto etr ets ett k-t ka- kaa kae kak kao kar kas kat ke- kea kee kek keo ker kes ket kke kkk kkr kks kkt koa koe kok koo kor kos kot kra krk kro krr krs krt ksa kse ksk kso ksr kss kst kta kte ktk kto ktr kts ktt oaa oae oak oao oar oas oat oea oee oeo oer oes oet oka oke okk oko okr oks oo- ooa ook ooo oor oos oot or- ora ore ork oro orr ors ort os- osa ose osk oso osr oss ost ot- ota ote otk oto otr ots ott ra- raa rae rak rao rar ras rat re- rea ree rek reo rer res ret rke rkk rko rks rkt roa roe rok roo ror ros rot rra rrk rrr rrs rrt rsa rse rsk rso rsr rss rst rta rte rtk rto rtr rts rtt saa sae sak sao sar sas sat se- sea see sek seo ser ses set sk- ska ske skk sko skr sks skt soa soe sok soo sor sos sot sr- sra sre srk sro srr srs srt ss- ssa sse ssk sso ssr sss sst sta ste stk sto str sts stt taa tae tak tao tar tas tat te- tea tee tek teo ter tes tet tka tke tkk tko tkr tks tkt to- toa toe tok too tor tos tot tra tre trk tro trr trs trt tsa tse tsk tso tsr tss tst tta tte ttk tto ttr tts ttt