-er eee eeg eer ees eet eex ege egg egi egr egs egt egu egx eie eig eii eir eis eit eiu eix ere erg eri err ers ert eru es- ese esg esi esr ess est esu esx ete etg eti etr ets ett etu etx eu- eue eug eui eur eus eut eux ex- exe exi exr exs ext exu exx ge- gee geg gei ger ges get geu gex ggg ggi ggr ggs ggt ggu gie gig gii gir gis git giu gre grg gri grr grs grt gru grx gse gsg gsi gsr gss gst gsu gsx gte gtg gti gtr gts gtt gtu gtx gu- gue gug gui gur gus gut guu gxs gxt ie- iee ieg iei ier ies iet iex ige igg igi igr igs igt igu iie iii iir iis iit iiu iix ir- ire irg iri irr irs irt iru irx is- ise isg isi isr iss ist isu ite itg iti its itt itu itx iu- iue iug iui iur ius iut ixe ixi re- ree reg rei rer res ret reu rex rge rgg rgi rgr rgs rgt rgx rie rig rii rir ris rit rix rrg rri rrr rrs rrt rru rse rsg rsi rsr rss rst rsu rsx rte rtg rti rtr rts rtt rtu rtx rue rug rui rur rus rut ruu rux rxr rxs se- see seg sei ser ses set seu sex sge sgg sgi sgr sgs sgt sgu sgx sie sig sii sir sis sit siu six sr- sre srg sri srr srs srt srx ss- sse ssg ssi ssr sss sst ssu ssx ste stg sti str sts stt stu stx sue sug sui sur sus sut suu sux sxi sxs sxt sxu t-x te- tee teg tei ter tes tet teu tex tge tgg tgi tgr tgs tgt tgu tie tig tii tir tis tit tiu tix tre trg tri trr trs trt tru trx tse tsg tsi tsr tss tst tsu tsx tte ttg tti ttr tts ttt ttu ttx tue tug tui tur tus tut tuu tux txe txi txs txt txu uee ueg uei uer ues uet uge ugg ugi ugr ugs ugt ugu ugx uie uig uii uir uis uit uiu ur- ure urg uri urr urs urt uru urx use usg usi usr uss ust usu usx ute uti utr uts utt utu utx uue uug uur uus uut uuu uxr uxt uxu xee xeg xer xes xet xeu xex xge xgi xie xii xis xit xiu xix xrt xrx xsi xss xst xti xtr xts xtx xue xui xus xxi xxx