-er a-a a-b aaa aab aae aaf aag aar aas aau ab- aba abb abe abf abg abr abs abu aea aeb aee aef aeg aer aes aeu af- afa afb afe aff afg afr afs afu ag- aga agb age agf agg agr ags agu ar- ara arb are arf arg arr ars aru as- asa asb ase asf asg asr ass asu au- aua aub aue auf aug aur aus b-u baa bab bae baf bag bar bas bau bba bbb bbe bbf bbg bbr bbs bbu be- bea beb bee bef beg ber bes beu bfa bfb bfe bff bfg bfr bfs bfu bga bgb bge bgf bgg bgr bgs bgu bra brb bre brf brg brr brs bru bsa bsb bse bsf bsg bsr bss bsu bua bub bue buf bug bur bus buu eaa eab eae eaf eag ear eas eau eba ebb ebe ebf ebg ebr ebs ebu eea eeb eee eef eeg eer ees ef- efa efb efe eff efg efr efs ega egb ege egf egg egr egs egu era erb ere erf erg err ers eru es- esa esb ese esf esg esr ess esu eu- eua eub eue euf eug eur eus faa fab fae faf fag far fas fau fba fbb fbe fbf fbg fbr fbs fbu fea feb fee fef feg fer fes feu ffa ffe fff ffg ffr ffs ffu fga fgb fge fgf fgg fgr fgs fra frb fre frf frg frr frs fru fsa fsb fse fsf fsg fsr fss fsu fua fub fue fuf fug fur fus fuu gaa gab gae gaf gag gar gas gau gba gbe gbf gbg gbr gbs gbu ge- gea geb gee gef geg ger ges geu gfa gfb gfe gff gfr gfs gga ggb ggg ggr ggs ggu gra grb gre grf grg grr grs gru gsa gsb gse gsf gsg gsr gss gsu gu- gua gub gue guf gug gur gus guu ra- raa rab rae raf rag rar ras rau rba rbb rbe rbf rbg rbr rbs rbu re- rea reb ree ref reg rer res reu rfa rfb rfe rff rfg rfr rfs rfu rga rgb rge rgf rgg rgr rgs rra rrb rrf rrg rrr rrs rru rsa rsb rse rsf rsg rsr rss rsu rua rub rue ruf rug rur rus ruu saa sab sae saf sag sar sas sau sba sbb sbe sbf sbg sbr sbs sbu se- sea seb see sef seg ser ses seu sfa sfb sfe sff sfg sfr sfs sfu sga sgb sge sgf sgg sgr sgs sgu sr- sra srb sre srf srg srr srs ss- ssa ssb sse ssf ssg ssr sss ssu sua sub sue suf sug sur sus suu ua- uaa uab uae uaf uag uar uas uau uba ubb ube ubf ubg ubr ubs ubu uea ueb uee uef ueg uer ues ufa ufe uff ufg ufr ufs ufu uga ugb uge ugf ugg ugr ugs ugu ur- ura urb ure urf urg urr urs uru usa usb use usf usg usr uss usu uua uue uug uur uus uuu

-ase a-be a-fu aaaa aaab aaae aaaf aaar aaas aaba aabb aaea aaes aafa aafb aaff aage aara aare aars aaru aasa aase aasf aass aasu aaus abaa abab abae abaf abag abar abas abau abb- abba abbb abbe abbr abbs abee aber abes abff abra abrs abs- absa abse absf abss absu abua abue abuf abug abus aeaf aeas aebs aeer aega aer- aera aers aess afaa afar afbs afee afer afes affa affs afgf afr- afra afre afrs afru afsa afsb afua afue afus agag agar agas agau agba agea agee ager ages agfa agga agge aggu agra agre agsa agsg agsu agua ague agur agus arab arae araf arag arar aras arau arba arbe arbs area aree aref areg ares areu arfa arfb arff arfs arfu arga argb arge args arr- arra arre arrg arrr arrs arru ars- arsa arse arsu arua arub arue arug asaa asab asae asaf asag asar asas asau asba asbu asea asee aser ases asfa asge asra asrg asrs asru assa asse assr asss assu asub asue asur asus auaa aube auer aufe aufs auga auge augs aur- aura aure ausa ause ausu auug baaa baaf baar baas baba babb babe babr babs babu baer baes baff baga bage bagg bags bar- bara barb bare barf barg barr bars baru basa base basf bass basu bau- bauf baug baur bbas bbau bbbb bbbs bbeb bbga bbrg beaf beag bear beas beau beba bebb bebe beeb beef beeg beer bees befa befe beff bega begg begs begu bera bere berg berr bers beru bes- besa bese bess beur bfas bffs bfgf bfsr bggs brab brae braf brag bras brau brea breb bree bref breg brer bres brfu brrr brrs brsb brsr brue brug brus bsaa bsas bsea bseb bsee bseg bser bses bsfa bsff bsfs bsgs bsra bsse buar buba bubb bube bubs bubu buea buer bueu bufe buff bufr buga buge bugg bugs bur- bura burb bure burg burr burs buru busa buse buss busu buus eaaf eaba eafb eaga eage eara earb eare ears easa ease eaus ebba ebbr ebbs eber ebes ebru ebsa ebur ebus eeea eeee eees eefa eefe eega eegs eera eerg eers eese ef-g efab efas efbr efes effa effs efsa efua egaa egae egar egas egba egbe egbu egea egee eger egfr eggb egge eggs egra egre egss eraf eras erau erba erbb erbe ereb erer eres erfs erg- erga ergg ergs erra erre errs ersa erse erua erub erur erus esab esag esar esas esau esba esbs esea esee eser eses esfs esra essa esse essg essu esuf esus euba euer euge eur- eura eure eusa euse faaa faas faba fabe fabs fabu faeb faes fafa fafe faff fafg fage fagg fags fagu fara farb fare farg farr fars faru fasa fase fass faue faur fbar fbrs fbus feaf fear feas feba febs feeb feer fees fefe feff