-er a-a a-b a-t aaa aab aae aag aar aat aax ab- aba abb abe abg abr abt abx aea aeb aee aeg aer aet aex ag- aga agb age agg agr agt agx ar- ara arb are arg arr art arx at- ata atb ate atg atr att atx ax- axa axe axr axt axx baa bab bae bag bar bat bax bba bbb bbe bbg bbr bbt bbx be- bea beb bee beg ber bet bex bga bgb bge bgg bgr bgt bgx bra brb bre brg brr brt brx bta btb bte btg btr btt btx bxb bxx eaa eab eae eag ear eat eax eba ebb ebe ebg ebr ebt ebx eea eeb eee eeg eer eet eex ega egb ege egg egr egt egx era erb ere erg err ert eta etb ete etg etr ett etx ex- exa exe exr ext exx gaa gab gae gag gar gat gba gbe gbg gbr gbt gbx ge- gea geb gee geg ger get gex gga ggb ggg ggr ggt gra grb gre grg grr grt grx gta gtb gte gtg gtr gtt gtx gxa gxt ra- raa rab rae rag rar rat rax rba rbb rbe rbg rbr rbt rbx re- rea reb ree reg rer ret rex rga rgb rge rgg rgr rgt rgx rra rrb rrg rrr rrt rta rtb rte rtg rtr rtt rtx rxr t-x taa tab tae tag tar tat tax tba tbb tbe tbg tbr tbt te- tea teb tee teg ter tet tex tga tgb tge tgg tgr tgt tra trb tre trg trr trt trx tta ttb tte ttg ttr ttt ttx txe txt xaa xag xar xat xbe xbr xbx xee xeg xer xet xex xge xrt xrx xtr xtx xxx

a-be aaaa aaab aaae aaar aaba aabb aabt aaea aage aara aare aart aata aatt abaa abab abae abag abar abat abax abb- abba abbb abbe abbr abbt abee aber abet abra abta aeer aega aer- aera aeta aetr aett aetx agag agar agat agba agea agee ager aget agga agge agra agre agta agte agtr agxt arab arae arag arar arat arax arba arbe area aree areg aret arex arga argb arge arr- arra arre arrg arrr arrt arta arte artr artx at-t at-x ataa atab atae atar atat atax atea atee ater atex atra atre atrx atta atte attr axar axat axer ba-x baaa baar baat baba babb babe babr baer baga bage bagg bagt bar- bara barb bare barg barr bart barx bata bate batt baxt bbbb bbeb bbet bbga bbrg beag bear beat beba bebb bebe beeb beeg beer beet bega begg bera bere berg berr bert beta bete bett brab brae brag brat brax brea breb bree breg brer bret brex brrr btaa btex btrt bttb eaba eaga eage eara earb eare eart eata eate ebba ebbr eber eeea eeee eega eera eerg eeta eete eext egaa egae egar egat egba egbe egea egee eger eggb egge egra egre egta egte er-x erat erba erbb erbe ereb erer eret erg- erga ergg erra erre erta etag etat etbr etee eter etra etre etta ette exa- exer exge exrx exta exte extr gaar gaba gabb gabe gabr gabt gaea gaer gaga gage gagg gara garb gare garg garr gart gata gate gatr gatt gatx gbag geab gear geat geba gebe geer geet gege gegg gera gerb gere gert geta getb gete getg gett ggbt gggg grab grae grat grbr grea greb gree greg gret grex grrr gtaa gtbr gtea gtta raab raag raat raba rabb rabe raeg raer raga rage ragg rara rarb rare rata rate ratt raxa rbbb rbbr rea- reae rear reat reba rebb rebe reeb reet rega rege regr regt rera rere rerg rert reta rete retr rett rexx rgba rgbe rgtr rrat rrrr rtee rtex taa- taag taar taat taba tabb tabe taer taga tage tagg tara tarb tare targ tarr tart tata tatb tate tatr tatt tax- taxa taxe taxt tbar tbrb tbta tear teat teba teer teet tega tegg tegt ter- tera tere terr teta tete tetr tett tetx texa text traa trab trae trag trat trax tre- trea tree treg tret trex trge trra trte trtr ttab ttbb tter tttt txaa txga txtr xaar xaga xara xare xate xbar xbee xbra xeer xega xer- xera xert xexe xtar xtea xtra xxxx

-aaa- -tree a-get aaaee aaarg aaata aabaa aabba aabga aabra aatxe abaab ababa ababe abaer abaga abara abare abate abbar abbat abbet abear abeat abeba abebe abeer abeet abega abege abegg abera abere aberg aberr abert abgar abrar abtaa abtar aeaea aebbe aegae aegea aeger aetat aeter agara agarx agata agate agege agete aggag aggar aggat agger agree agter ar-ab araat arab- araba arabe araea arage arara arare arata arate araxa arbab arbar arbat arbee arber arbet arbre areae arear areat areet arega arere arete arett arexx arget arrea arret arrgt art-x artag artar artat artax artea arter artex atara ataxx atbar atbat atear ateat ater- aterr atete atgar atger atget atrab atrax atree atrex attar attea atter attex attra axert baabe baart baata baate babar babax babee baber babra baert bagag bagar bagea bager bagga bagge bagra bagre bar-x baraa barab barag barar barat barba barbe barea barer baret barga barge barra barre barta batab batar batat batea bater batra batre batta batte bbart bbbee bbear be-er beara beare beart beata beate bebar bebat beber bebra beebe beega beete begab begar begat begee beget begga begge berag berar berat berba berbe berea bereg beret berga berge berra berre berta berte betag betar betax betee beter betra betre bett- betta bette bexar bexta braat braga bragb brage bragg brate bratt bre-x breba breer breet breg- brega brege bregg brera brere brett bretx brgat brrar brrrr btr-t e-tag eagar eager eagre earar eatat eater eatre ebara ebart ebate ebber ebbet eberg ebert eeeee egare eggar egger egret erate erbaa erbar erbbe erber erear erege erere ergat errat ertar erte erter etage etate etete etext etrag