-er a-a a-q a-t aaa aae aaq aar aas aat aau aax aea aee aeq aer aes aet aeu aex aqa aqr aqs aqt ar- ara are arq arr ars art aru arx as- asa ase asq asr ass ast asu asx at- ata ate atr ats att atu atx au- aua aue aur aus aut aux ax- axa axe axr axs axt axx eaa eae ear eas eat eau eax eea eee eer ees eet eex eqa eqe eqq eqs eqt equ era ere erq err ers ert eru es- esa ese esq esr ess est esu esx eta ete etr ets ett etu etx eu- eua eue eur eus eut eux ex- exa exe exr exs ext exu exx qaa qar qas qat qau qax qee qet qex qqq qqu qra qre qrs qrt qru qsa qsr qst qta qtq qtr qts qu- qua que qur qus qut qux qxe ra- raa rae raq rar ras rat rau rax re- rea ree req rer res ret reu rex rqs rra rrq rrr rrs rrt rru rsa rse rsq rsr rss rst rsu rsx rta rte rtq rtr rts rtt rtu rtx rua rue rur rus rut ruu rux rxr rxs saa sae saq sar sas sat sau sax se- sea see seq ser ses set seu sex sqa sqq sqr sqs sqx sr- sra sre srq srr srs srt srx ss- ssa sse ssq ssr sss sst ssu ssx sta ste stq str sts stt stu stx sua sue suq sur sus sut suu sux sxs sxt sxu t-x taa tae taq tar tas tat tau tax te- tea tee teq ter tes tet teu tex tra tre trq trr trs trt tru trx tsa tse tsq tsr tss tst tsu tsx tta tte ttr tts ttt ttu ttx tua tue tur tus tut tuu tux txe txs txt txu ua- uaa uae uaq uar uas uat uau uea uee uer ues uet ur- ura ure urr urs urt uru urx usa use usr uss ust usu usx uta ute utr uts utt utu utx uua uue uur uus uut uuu uxr uxt uxu xaa xar xas xat xau xee xeq xer xes xet xeu xex xqt xrt xrx xsa xss xst xtr xts xtx xue xus xxx