-er a-a a-i a-t aaa aae aaf aag aai aar aas aat aau aea aee aef aeg aei aer aes aet aeu af- afa afe aff afg afi afr afs aft afu ag- aga age agf agg agi agr ags agt agu ai- aia aie aif aig aii air ais ait aiu ar- ara are arf arg ari arr ars art aru as- asa ase asf asg asi asr ass ast asu at- ata ate atf atg ati atr ats att atu au- aua aue auf aug aui aur aus aut eaa eae eaf eag eai ear eas eat eau eea eee eef eeg eer ees eet ef- efa efe eff efg efi efr efs eft ega ege egf egg egi egr egs egt egu eia eie eif eig eii eir eis eit eiu era ere erf erg eri err ers ert eru es- esa ese esf esg esi esr ess est esu eta ete etf etg eti etr ets ett etu eu- eua eue euf eug eui eur eus eut faa fae faf fag fai far fas fat fau fea fee fef feg fei fer fes fet feu ffa ffe fff ffg ffi ffr ffs fft ffu fga fge fgf fgg fgi fgr fgs fgt fia fie fif fig fii fir fis fit fiu fra fre frf frg fri frr frs frt fru fsa fse fsf fsg fsi fsr fss fst fsu fta fte ftf ftg fti ftr fts ftt ftu fua fue fuf fug fui fur fus fut fuu gaa gae gaf gag gai gar gas gat gau ge- gea gee gef geg gei ger ges get geu gfa gfe gff gfi gfr gfs gft gga ggg ggi ggr ggs ggt ggu gia gie gif gig gii gir gis git giu gra gre grf grg gri grr grs grt gru gsa gse gsf gsg gsi gsr gss gst gsu gta gte gtf gtg gti gtr gts gtt gtu gu- gua gue guf gug gui gur gus gut guu i-f ia- iaa iae iaf iag iai iar ias iat iau ie- iea iee ief ieg iei ier ies iet ifa ife iff ifg ifi ifr ifs ift ifu iga ige igf igg igi igr igs igt igu iia iie iif iii iir iis iit iiu ir- ira ire irf irg iri irr irs irt iru is- isa ise isf isg isi isr iss ist isu ita ite itf itg iti its itt itu iu- iua iue iug iui iur ius iut ra- raa rae raf rag rai rar ras rat rau re- rea ree ref reg rei rer res ret reu rfa rfe rff rfg rfi rfr rfs rft rfu rga rge rgf rgg rgi rgr rgs rgt ria rie rif rig rii rir ris rit rra rrf rrg rri rrr rrs rrt rru rsa rse rsf rsg rsi rsr rss rst rsu rta rte rtf rtg rti rtr rts rtt rtu rua rue ruf rug rui rur rus rut ruu saa sae saf sag sai sar sas sat sau se- sea see sef seg sei ser ses set seu sfa sfe sff sfg sfi sfr sfs sft sfu sga sge sgf sgg sgi sgr sgs sgt sgu sia sie sif sig sii sir sis sit siu sr- sra sre srf srg sri srr srs srt ss- ssa sse ssf ssg ssi ssr sss sst ssu sta ste stf stg sti str sts stt stu sua sue suf sug sui sur sus sut suu taa tae taf tag tai tar tas tat tau te- tea tee tef teg tei ter tes tet teu tfa tfe tff tfg tfi tfr tfs tft tfu tga tge tgf tgg tgi tgr tgs tgt tgu tia tie tif tig tii tir tis tit tiu tra tre trf trg tri trr trs trt tru tsa tse tsf tsg tsi tsr tss tst tsu tta tte ttf ttg tti ttr tts ttt ttu tua tue tuf tug tui tur tus tut tuu ua- uaa uae uaf uag uai uar uas uat uau uea uee uef ueg uei uer ues uet ufa ufe uff ufg ufi ufr ufs uft ufu uga uge ugf ugg ugi ugr ugs ugt ugu uia uie uif uig uii uir uis uit uiu ur- ura ure urf urg uri urr urs urt uru usa use usf usg usi usr uss ust usu uta ute utf uti utr uts utt utu uua uue uug uur uus uut uuu