-er a-a a-t aaa aae aak aar aas aat aau aea aee aek aer aes aet aeu aka ake akk akr aks aku ar- ara are ark arr ars art aru as- asa ase ask asr ass ast asu at- ata ate atr ats att atu au- aua aue auk aur aus aut eaa eae eak ear eas eat eau eea eee eek eer ees eet eka eke ekr eks ekt eku era ere erk err ers ert eru es- esa ese esk esr ess est esu eta ete etk etr ets ett etu eu- eua eue eur eus eut k-t ka- kaa kae kak kar kas kat kau ke- kea kee kek ker kes ket kke kkk kkr kks kkt kku kra krk krr krs krt kru ksa kse ksk ksr kss kst ksu kta kte ktk ktr kts ktt ktu kue kuk kur kus kut kuu ra- raa rae rak rar ras rat rau re- rea ree rek rer res ret reu rke rkk rks rkt rku rra rrk rrr rrs rrt rru rsa rse rsk rsr rss rst rsu rta rte rtk rtr rts rtt rtu rua rue ruk rur rus rut ruu saa sae sak sar sas sat sau se- sea see sek ser ses set seu sk- ska ske skk skr sks skt sku sr- sra sre srk srr srs srt ss- ssa sse ssk ssr sss sst ssu sta ste stk str sts stt stu sua sue suk sur sus sut suu taa tae tak tar tas tat tau te- tea tee tek ter tes tet teu tka tke tkk tkr tks tkt tra tre trk trr trs trt tru tsa tse tsk tsr tss tst tsu tta tte ttk ttr tts ttt ttu tua tue tuk tur tus tut tuu ua- uaa uae uak uar uas uat uau uea uee uer ues uet uka uke ukk ukr uku ur- ura ure urk urr urs urt uru usa use usk usr uss ust usu uta ute utk utr uts utt utu uua uue uur uus uut uuu