-er a-a a-b a-i a-t aaa aab aae aag aai aak aar aas aat aau ab- aba abb abe abg abi abk abr abs abt abu aea aeb aee aeg aei aek aer aes aet aeu ag- aga agb age agg agi agk agr ags agt agu ai- aia aib aie aig aii aik air ais ait aiu aka akb ake akg aki akk akr aks aku ar- ara arb are arg ari ark arr ars art aru as- asa asb ase asg asi ask asr ass ast asu at- ata atb ate atg ati atr ats att atu au- aua aub aue aug aui auk aur aus aut b-u baa bab bae bag bai bak bar bas bat bau bba bbb bbe bbg bbi bbk bbr bbs bbt bbu be- bea beb bee beg bei bek ber bes bet beu bga bgb bge bgg bgi bgk bgr bgs bgt bgu bi- bia bib bie big bii bik bir bis bit biu bka bkb bke bkg bkk bkr bks bkt bra brb bre brg bri brk brr brs brt bru bsa bsb bse bsg bsi bsk bsr bss bst bsu bta btb bte btg bti btk btr bts btt btu bua bub bue bug bui buk bur bus but buu eaa eab eae eag eai eak ear eas eat eau eba ebb ebe ebg ebi ebk ebr ebs ebt ebu eea eeb eee eeg eek eer ees eet ega egb ege egg egi egr egs egt egu eia eib eie eig eii eik eir eis eit eiu eka ekb eke ekg eki ekr eks ekt eku era erb ere erg eri erk err ers ert eru es- esa esb ese esg esi esk esr ess est esu eta etb ete etg eti etk etr ets ett etu eu- eua eub eue eug eui eur eus eut gaa gab gae gag gai gak gar gas gat gau gba gbe gbg gbi gbk gbr gbs gbt gbu ge- gea geb gee geg gei gek ger ges get geu gga ggb ggg ggi ggr ggs ggt ggu gia gib gie gig gii gik gir gis git giu gka gkb gks gkt gra grb gre grg gri grk grr grs grt gru gsa gsb gse gsg gsi gsk gsr gss gst gsu gta gtb gte gtg gti gtk gtr gts gtt gtu gu- gua gub gue gug gui guk gur gus gut guu ia- iaa iab iae iag iai iar ias iat iau iba ibb ibe ibg ibi ibk ibr ibs ibt ibu ie- iea iee ieg iei iek ier ies iet iga igb ige igg igi igk igr igs igt igu iia iib iie iii iir iis iit iiu ika ikb ike iki ikk ikr iks ikt iku ir- ira irb ire irg iri irk irr irs irt iru is- isa isb ise isg isi isk isr iss ist isu ita itb ite itg iti itk its itt itu iu- iua iub iue iug iui iur ius iut k-t ka- kaa kab kae kag kai kak kar kas kat kau kba kbb kbe kbi kbk kbr kbs kbu ke- kea keb kee keg kei kek ker kes ket kga kgb kgi kgs kgu kia kib kie kig kii kik kir kis kit kiu kkb kke kki kkk kkr kks kkt kku kra krg kri krk krr krs krt kru ksa ksb kse ksg ksi ksk ksr kss kst ksu kta ktb kte ktg ktk ktr kts ktt ktu kub kue kug kui kuk kur kus kut kuu ra- raa rab rae rag rai rak rar ras rat rau rba rbb rbe rbg rbi rbk rbr rbs rbt rbu re- rea reb ree reg rei rek rer res ret reu rga rgb rge rgg rgi rgk rgr rgs rgt ria rib rie rig rii rik rir ris rit rkb rke rkg rkk rks rkt rku rra rrb rrg rri rrk rrr rrs rrt rru rsa rsb rse rsg rsi rsk rsr rss rst rsu rta rtb rte rtg rti rtk rtr rts rtt rtu rua rub rue rug rui ruk rur rus rut ruu saa sab sae sag sai sak sar sas sat sau sba sbb sbe sbg sbi sbk sbr sbs sbt sbu se- sea seb see seg sei sek ser ses set seu sga sgb sge sgg sgi sgk sgr sgs sgt sgu sia sib sie sig sii sik sir sis sit siu sk- ska skb ske skg ski skk skr sks skt sku sr- sra srb sre srg sri srk srr srs srt ss- ssa ssb sse ssg ssi ssk ssr sss sst ssu sta stb ste stg sti stk str sts stt stu sua sub sue sug sui suk sur sus sut suu taa tab tae tag tai tak tar tas tat tau tba tbb tbe tbg tbi tbk tbr tbs tbt tbu te- tea teb tee teg tei tek ter tes tet teu tga tgb tge tgg tgi tgk tgr tgs tgt tgu tia tib tie tig tii tik tir tis tit tiu tka tkb tke tkg tkk tkr tks tkt tra trb tre trg tri trk trr trs trt tru tsa tsb tse tsg tsi tsk tsr tss tst tsu tta ttb tte ttg tti ttk ttr tts ttt ttu tua tub tue tug tui tuk tur tus tut tuu ua- uaa uab uae uag uai uak uar uas uat uau uba ubb ube ubg ubi ubk ubr ubs ubt ubu uea ueb uee ueg uei uer ues uet uga ugb uge ugg ugi ugk ugr ugs ugt ugu uia uib uie uig uii uir uis uit uiu uka ukb uke uki ukk ukr uku ur- ura urb ure urg uri urk urr urs urt uru usa usb use usg usi usk usr uss ust usu uta utb ute uti utk utr uts utt utu uua uue uug uur uus uut uuu

-ase a-ak a-be a-ii aaaa aaab aaae aaai aaar aaas aaba aabb aabi aabt aaea aaes aage aaib aaii aais aaka aake aaku aara aare aari