-er a-a a-b a-t aaa aab aae aar aas aat aau ab- aba abb abe abr abs abt abu aea aeb aee aer aes aet aeu ar- ara arb are arr ars art aru as- asa asb ase asr ass ast asu at- ata atb ate atr ats att atu au- aua aub aue aur aus aut b-u baa bab bae bar bas bat bau bba bbb bbe bbr bbs bbt bbu be- bea beb bee ber bes bet beu bra brb bre brr brs brt bru bsa bsb bse bsr bss bst bsu bta btb bte btr bts btt btu bua bub bue bur bus but buu eaa eab eae ear eas eat eau eba ebb ebe ebr ebs ebt ebu eea eeb eee eer ees eet era erb ere err ers ert eru es- esa esb ese esr ess est esu eta etb ete etr ets ett etu eu- eua eub eue eur eus eut ra- raa rab rae rar ras rat rau rba rbb rbe rbr rbs rbt rbu re- rea reb ree rer res ret reu rra rrb rrr rrs rrt rru rsa rsb rse rsr rss rst rsu rta rtb rte rtr rts rtt rtu rua rub rue rur rus rut ruu saa sab sae sar sas sat sau sba sbb sbe sbr sbs sbt sbu se- sea seb see ser ses set seu sr- sra srb sre srr srs srt ss- ssa ssb sse ssr sss sst ssu sta stb ste str sts stt stu sua sub sue sur sus sut suu taa tab tae tar tas tat tau tba tbb tbe tbr tbs tbt tbu te- tea teb tee ter tes tet teu tra trb tre trr trs trt tru tsa tsb tse tsr tss tst tsu tta ttb tte ttr tts ttt ttu tua tub tue tur tus tut tuu ua- uaa uab uae uar uas uat uau uba ubb ube ubr ubs ubt ubu uea ueb uee uer ues uet ur- ura urb ure urr urs urt uru usa usb use usr uss ust usu uta utb ute utr uts utt utu uua uue uur uus uut uuu

-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 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 arab arae arar aras arat arau arba arbe arbs area aree ares aret areu arr- arra arre arrr arrs arrt arru ars- arsa arse arst arsu arta arte artr arts 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 ataa atab atae atar atas atat atbs atea atee ater ates atra atre atru 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 baaa baar baas baat baba babb babe babr babs babu baer baes bar- bara barb bare barr bars bart baru basa base bass bast basu bata bate bats batt batu bau- baur 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 brab brae bras brat brau brea breb bree brer bres bret brrr brrs brsb brsr brst brue brus brut bsaa bsas bsat bsea bseb bsee bser bses bset bsra bsse bsts btaa 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 but- buta bute buts butt buus eaba eara earb eare ears eart easa ease east eata eate eats eaus ebba ebbr ebbs eber ebes ebru ebsa ebur ebus eeea eeee eees eera eers eese eeta eete eets eetu 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 euba euer eur- eura eure eurt eusa euse 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 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 rras rrat rrrr rsaa rsee rsre rssa rsts rstu rsua rtas rtee rtes rtss rtts ruas ruba rubb rube rubs rubu ruer rues ruet rura rure rurs ruru rusa ruse russ rust rusu ruta rute ruts rutt rutu saab saae saar saas saat saba sabb sabe sabr sabs sabu saeb saer saes sara sare sarr sars sart saru sasa sase sass sast sata satb sate satr sats satt satu saua saue saur saus saut sbaa sbar sbas sbbs sber sbsa sbse sbst sbus se-e se-s se-t se-u seaa seab sear seas seat seau seba sebe sebs sebt seea seeb seer sees seet seeu sera serb sere serr sers sert seru sesa sese sess sest set- seta sete sets sett seur sras sreb sres srta srtr srub ssaa ssab ssas ssat ssau ssbr ssee sses sset ssra ssrs sssa sssb ssss ssta sstb ssts stab stae star stas stat stau stbs stea stee ster stes stet stra stre strs stru stss sttr stub stue stur stus stut suar suas suat sub- suba subb subs suee