-er a-a a-b a-t aaa aab aae aar aas aat aax ab- aba abb abe abr abs abt abx aea aeb aee aer aes aet aex ar- ara arb are arr ars art arx as- asa asb ase asr ass ast asx at- ata atb ate atr ats att atx ax- axa axe axr axs axt axx baa bab bae bar bas bat bax bba bbb bbe bbr bbs bbt bbx be- bea beb bee ber bes bet bex bra brb bre brr brs brt brx bsa bsb bse bsr bss bst bsx bta btb bte btr bts btt btx bxb bxx eaa eab eae ear eas eat eax eba ebb ebe ebr ebs ebt ebx eea eeb eee eer ees eet eex era erb ere err ers ert es- esa esb ese esr ess est esx eta etb ete etr ets ett etx ex- exa exe exr exs ext exx ra- raa rab rae rar ras rat rax rba rbb rbe rbr rbs rbt rbx re- rea reb ree rer res ret rex rra rrb rrr rrs rrt rsa rsb rse rsr rss rst rsx rta rtb rte rtr rts rtt rtx rxr rxs saa sab sae sar sas sat sax sba sbb sbe sbr sbs sbt sbx se- sea seb see ser ses set sex sr- sra srb sre srr srs srt srx ss- ssa ssb sse ssr sss sst ssx sta stb ste str sts stt stx sxs sxt t-x taa tab tae tar tas tat tax tba tbb tbe tbr tbs tbt te- tea teb tee ter tes tet tex tra trb tre trr trs trt trx tsa tsb tse tsr tss tst tsx tta ttb tte ttr tts ttt ttx txe txs txt xaa xar xas xat xbe xbr xbx xee xer xes xet xex xrt xrx xsa xsb xss xst xtr xts xtx xxx

-ase a-be aaaa aaab aaae aaar aaas aaba aabb aabt aaea aaes aara aare aars aart aasa aase aass aast aata aatt abaa abab abae abar abas abat abax abb- abba abbb abbe abbr abbs abbt abee aber abes abet abra abrs abs- absa abse abss abta abts aeas aebs aeer aer- aera aers aess aest aeta aetr aett aetx arab arae arar aras arat arax arba arbe arbs area aree ares aret arex arr- arra arre arrr arrs arrt ars- arsa arse arst arta arte artr arts artx asaa asab asae asar asas asat asba asea asee aser ases aset asra asrs assa asse assr asss asst asta astb aste astr asts at-t at-x ataa atab atae atar atas atat atax atbs atea atee ater ates atex atra atre atrx atsb atse atst atta atte attr atts axar axat axer axes axse ba-x baaa baar baas baat baba babb babe babr babs baer baes bar- bara barb bare barr bars bart barx basa base bass bast bata bate bats batt baxt bbas bbbb bbbs bbeb bbet bear beas beat beba bebb bebe beeb beer bees beet bera bere berr bers bert bes- besa bese bess best beta bete bets bett brab brae bras brat brax brea breb bree brer bres bret brex brrr brrs brsb brsr brst bsaa bsas bsat bsea bseb bsee bser bses bset bsra bsse bsts btaa btex btrt btss bttb eaba eara earb eare ears eart easa ease east eata eate eats ebba ebbr ebbs eber ebes ebsa eeea eeee eees eera eers eese eeta eete eets eext er-x eras erat erba erbb erbe ereb erer eres eret erra erre errs ersa erse erst erta erts esab esar esas esat esba esbs esea esee eser eses eset esra essa esse esst esta este estr ests etas etat etbr etee eter etes etra etre etta ette exa- exer exes exrx exta exte extr exts raab raas raat raba rabb rabe rabs raer raes rara rarb rare rars rasa rase rass rast rata rate rats ratt raxa rbbb rbbr rbbs rbss rbst rea- reae rear reas reat reba rebb rebe rebs reeb rees reet rera rere rers rert resa rese ress rest reta rete retr rets rett rexx rras rrat rrrr rsaa rsee rsre rssa rsts rtas rtee rtes rtex rtss rtts rxes sa-x saab saae saar saas saat saba sabb sabe sabr sabs saeb saer saes saex sara sare sarr sars sart sasa sase sass sast sata satb sate satr sats satt saxa saxe saxt sbaa sbar sbas sbbs sber sbsa sbse sbst se-e se-s se-t se-x seaa seab sear seas seat seax seba sebe sebs sebt seea seeb seer sees seet seex sera serb sere serr sers sert sesa sese sess sest set- seta sete sets sett setx sex- sexe sext sras sreb sres srta srtr ssaa ssab ssas ssat ssbr ssee sses sset ssex ssra ssrs sssa sssb ssss ssta sstb ssts stab stae star stas stat stax stbs stea stee ster stes stet stex stra stre strs stss sttr taa- taar taas taat taba tabb tabe tabs taer taes tara tarb tare tarr tars tart tasa tasb tase tasr tass tast tata tatb tate tatr tats tatt tax- taxa taxe taxt tbar tbas tbbs tbrb tbst tbta tear teas teat teba teer tees teet ter- tera tere terr ters tesa tese tess test teta tete tetr tets tett tetx texa text traa trab trae tras trat trax tre- trea tree tres tret trex trra trst trte trtr tsaa tsar tsat tses tset tssa tsse tssr tsst tsts ttab ttbb tter ttss tttt txaa txtr xaar xara xare xate xats xbar xbee xbra xeer xer- xera xers xert xexe xtar xtbs xtea xtra xtsr xxxx

-aaa- -tree a-sea aaaas aaaee aaasa aaass aaata aabaa aabba aabra aarts aasee aaset aasra aatsr aatxe abaab ababa ababe ababs abaer abara abare abasa abase abass abate abbar abbas abbat abbes abbet abbrs abear abeat abeba abebe abeer abees abeet abera abere aberr abert abest abets abrar abras abres absar absee abset abstr abtaa abtar aeaea aebbe aeres aerts aetas aetat aeter ar-ab araat arab- araba arabe arabs