-er a-a a-b a-t aaa aab aae aar aas aat aau aax ab- aba abb abe abr abs abt abu abx aea aeb aee aer aes aet aeu aex ar- ara arb are arr ars art aru arx as- asa asb ase asr ass ast asu asx at- ata atb ate atr ats att atu atx au- aua aub aue aur aus aut aux ax- axa axe axr axs axt axx b-u baa bab bae bar bas bat bau bax bba bbb bbe bbr bbs bbt bbu bbx be- bea beb bee ber bes bet beu bex bra brb bre brr brs brt bru brx bsa bsb bse bsr bss bst bsu bsx bta btb bte btr bts btt btu btx bua bub bue bur bus but buu bux bxb bxx eaa eab eae ear eas eat eau eax eba ebb ebe ebr ebs ebt ebu ebx eea eeb eee eer ees eet eex era erb ere err ers ert eru es- esa esb ese esr ess est esu esx eta etb ete etr ets ett etu etx eu- eua eub eue eur eus eut eux ex- exa exe exr exs ext exu exx ra- raa rab rae rar ras rat rau rax rba rbb rbe rbr rbs rbt rbu rbx re- rea reb ree rer res ret reu rex rra rrb rrr rrs rrt rru rsa rsb rse rsr rss rst rsu rsx rta rtb rte rtr rts rtt rtu rtx rua rub rue rur rus rut ruu rux rxr rxs saa sab sae sar sas sat sau sax sba sbb sbe sbr sbs sbt sbu sbx se- sea seb see ser ses set seu sex sr- sra srb sre srr srs srt srx ss- ssa ssb sse ssr sss sst ssu ssx sta stb ste str sts stt stu stx sua sub sue sur sus sut suu sux sxs sxt sxu t-x taa tab tae tar tas tat tau tax tba tbb tbe tbr tbs tbt tbu te- tea teb tee ter tes tet teu tex tra trb tre trr trs trt tru trx tsa tsb tse tsr tss tst tsu tsx tta ttb tte ttr tts ttt ttu ttx tua tub tue tur tus tut tuu tux txe txs txt txu ua- uaa uab uae uar uas uat uau uba ubb ube ubr ubs ubt ubu ubx uea ueb uee uer ues uet ur- ura urb ure urr urs urt uru urx usa usb use usr uss ust usu usx uta utb ute utr uts utt utu utx uua uue uur uus uut uuu uxb uxr uxt uxu xaa xar xas xat xau xbe xbr xbx xee xer xes xet xeu xex xrt xrx xsa xsb xss xst xtr xts xtx xue xus xxx

-ase a-be aaaa aaab aaae aaar aaas aaba aabb aabt aaea aaes aara aare aars aart aaru aasa aase aass aast aasu aata aatt aaus abaa abab abae abar abas abat abau abax abb- abba abbb abbe abbr abbs abbt abee aber abes abet abra abrs abs- absa abse abss absu abta abts abtu abua abue abus abut aeas aebs aeer aer- aera aers aess aest aeta aetr aett aetx arab arae arar aras arat arau arax arba arbe arbs area aree ares aret areu arex arr- arra arre arrr arrs arrt arru ars- arsa arse arst arsu arta arte artr arts artx arua arub arue arut asaa asab asae asar asas asat asau asba asbu asea asee aser ases aset asra asrs asru assa asse assr asss asst assu asta astb aste astr asts asub asue asur asus at-t at-x ataa atab atae atar atas atat atax atbs atea atee ater ates atex atra atre atru atrx atsb atse atst atta atte attr atts attu atua atub atur atus auaa aube auer aur- aura aure ausa ause aust ausu aut- aute auts auxa axar axat axer axes axse ba-x baaa baar baas baat baba babb babe babr babs babu baer baes bar- bara barb bare barr bars bart baru barx basa base bass bast basu bata bate bats batt batu bau- baur baux baxt bbas bbau bbbb bbbs bbeb bbet bear beas beat beau beba bebb bebe beeb beer bees beet bera bere berr bers bert beru bes- besa bese bess best beta bete bets bett betu beur beux brab brae bras brat brau brax brea breb bree brer bres bret brex brrr brrs brsb brsr brst brue brus brut brux bsaa bsas bsat bsea bseb bsee bser bses bset bsra bsse bsts btaa btex btrt btss bttb btus buar buat buba bubb bube bubs bubu buea buer bueu bur- bura burb bure burr burs burt buru busa buse buss bust busu busx but- buta bute buts butt buus buxa eaba eara earb eare ears eart easa ease east eata eate eats eaus eaux ebba ebbr ebbs eber ebes ebru ebsa ebur ebus eeea eeee eees eera eers eese eeta eete eets eetu eext er-x eras erat erau erba erbb erbe ereb erer eres eret erra erre errs ersa erse erst erta erts ertu erua erub erur erus esab esar esas esat esau esba esbs esea esee eser eses eset esra essa esse esst essu esta este estr ests esus etas etat etbr etee eter etes etra etre etsu etta ette ettu etua etux euba euer eur- eura eure eurt eusa euse exa- exer exes exrx exta exte extr exts raab raas raat raba rabb rabe rabs rabu raer raes rara rarb rare rars rasa rase rass rast rasu rata rate rats ratt ratu raua raub raue raus raut raxa rbbb rbbr rbbs rbss rbst rea- reae rear reas reat reau reba rebb rebe rebs rebu reeb rees reet rera rere rers rert reru resa rese ress rest reta rete retr rets rett reue reus reut reuu reux rexx rras rrat rrrr rsaa rsee rsre rssa rsts rstu rsua rtas rtee rtes rtex rtss rtts ruas ruba rubb rube rubs rubu ruer rues ruet rura rure rurs ruru rusa ruse russ rust