-er a-a a-i a-t aaa aae aai aak aar aas aat aea aee aei aek aer aes aet ai- aia aie aii aik air ais ait aka ake aki akk akr aks ar- ara are ari ark arr ars art as- asa ase asi ask asr ass ast at- ata ate ati atr ats att eaa eae eai eak ear eas eat eea eee eek eer ees eet eia eie eii eik eir eis eit eka eke eki ekr eks ekt era ere eri erk err ers ert es- esa ese esi esk esr ess est eta ete eti etk etr ets ett ia- iaa iae iai iar ias iat ie- iea iee iei iek ier ies iet iia iie iii iir iis iit ika ike iki ikk ikr iks ikt ir- ira ire iri irk irr irs irt is- isa ise isi isk isr iss ist ita ite iti itk its itt k-t ka- kaa kae kai kak kar kas kat ke- kea kee kei kek ker kes ket kia kie kii kik kir kis kit kke kki kkk kkr kks kkt kra kri krk krr krs krt ksa kse ksi ksk ksr kss kst kta kte ktk ktr kts ktt ra- raa rae rai rak rar ras rat re- rea ree rei rek rer res ret ria rie rii rik rir ris rit rke rkk rks rkt rra rri rrk rrr rrs rrt rsa rse rsi rsk rsr rss rst rta rte rti rtk rtr rts rtt saa sae sai sak sar sas sat se- sea see sei sek ser ses set sia sie sii sik sir sis sit sk- ska ske ski skk skr sks skt sr- sra sre sri srk srr srs srt ss- ssa sse ssi ssk ssr sss sst sta ste sti stk str sts stt taa tae tai tak tar tas tat te- tea tee tei tek ter tes tet tia tie tii tik tir tis tit tka tke tkk tkr tks tkt tra tre tri trk trr trs trt tsa tse tsi tsk tsr tss tst tta tte tti ttk ttr tts ttt