-er a-a a-i a-t aaa aae aag aai aar aas aat aau aax aea aee aeg aei aer aes aet aeu aex ag- aga age agg agi agr ags agt agu agx ai- aia aie aig aii air ais ait aiu aix ar- ara are arg ari arr ars art aru arx as- asa ase asg asi asr ass ast asu asx at- ata ate atg ati atr ats att atu atx au- aua aue aug aui aur aus aut aux ax- axa axe axi axr axs axt axx eaa eae eag eai ear eas eat eau eax eea eee eeg eer ees eet eex ega ege egg egi egr egs egt egu egx eia eie eig eii eir eis eit eiu eix era ere erg eri err ers ert eru es- esa ese esg esi esr ess est esu esx eta ete etg eti etr ets ett etu etx eu- eua eue eug eui eur eus eut eux ex- exa exe exi exr exs ext exu exx gaa gae gag gai gar gas gat gau ge- gea gee geg gei ger ges get geu gex gga ggg ggi ggr ggs ggt ggu gia gie gig gii gir gis git giu gra gre grg gri grr grs grt gru grx gsa gse gsg gsi gsr gss gst gsu gsx gta gte gtg gti gtr gts gtt gtu gtx gu- gua gue gug gui gur gus gut guu gxa gxs gxt ia- iaa iae iag iai iar ias iat iau ie- iea iee ieg iei ier ies iet iex iga ige igg igi igr igs igt igu iia iie iii iir iis iit iiu iix ir- ira ire irg iri irr irs irt iru irx is- isa ise isg isi isr iss ist isu ita ite itg iti its itt itu itx iu- iua iue iug iui iur ius iut ixe ixi ra- raa rae rag rai rar ras rat rau rax re- rea ree reg rei rer res ret reu rex rga rge rgg rgi rgr rgs rgt rgx ria rie rig rii rir ris rit rix rra rrg rri rrr rrs rrt rru rsa rse rsg rsi rsr rss rst rsu rsx rta rte rtg rti rtr rts rtt rtu rtx rua rue rug rui rur rus rut ruu rux rxr rxs saa sae sag sai sar sas sat sau sax se- sea see seg sei ser ses set seu sex sga sge sgg sgi sgr sgs sgt sgu sgx sia sie sig sii sir sis sit siu six sr- sra sre srg sri srr srs srt srx ss- ssa sse ssg ssi ssr sss sst ssu ssx sta ste stg sti str sts stt stu stx sua sue sug sui sur sus sut suu sux sxi sxs sxt sxu t-x taa tae tag tai tar tas tat tau tax te- tea tee teg tei ter tes tet teu tex tga tge tgg tgi tgr tgs tgt tgu tia tie tig tii tir tis tit tiu tix tra tre trg tri trr trs trt tru trx tsa tse tsg tsi tsr tss tst tsu tsx tta tte ttg tti ttr tts ttt ttu ttx tua tue tug tui tur tus tut tuu tux txe txi txs txt txu ua- uaa uae uag uai uar uas uat uau uea uee ueg uei uer ues uet uga uge ugg ugi ugr ugs ugt ugu ugx uia uie uig uii uir uis uit uiu ur- ura ure urg uri urr urs urt uru urx usa use usg usi usr uss ust usu usx uta ute uti utr uts utt utu utx uua uue uug uur uus uut uuu uxr uxt uxu xaa xag xar xas xat xau xee xeg xer xes xet xeu xex xge xgi xia xie xii xis xit xiu xix xrt xrx xsa xsi xss xst xti xtr xts xtx xue xui xus xxi xxx