-er a-a a-b a-t aaa aab aae aaf aar aat ab- aba abb abe abf abr abt aea aeb aee aef aer aet af- afa afb afe aff afr aft ar- ara arb are arf arr art at- ata atb ate atf atr att baa bab bae baf bar bat bba bbb bbe bbf bbr bbt be- bea beb bee bef ber bet bfa bfb bfe bff bfr bft bra brb bre brf brr brt bta btb bte btf btr btt eaa eab eae eaf ear eat eba ebb ebe ebf ebr ebt eea eeb eee eef eer eet ef- efa efb efe eff efr eft era erb ere erf err ert eta etb ete etf etr ett faa fab fae faf far fat fba fbb fbe fbf fbr fbt fea feb fee fef fer fet ffa ffe fff ffr fft fra frb fre frf frr frt fta ftb fte ftf ftr ftt ra- raa rab rae raf rar rat rba rbb rbe rbf rbr rbt re- rea reb ree ref rer ret rfa rfb rfe rff rfr rft rra rrb rrf rrr rrt rta rtb rte rtf rtr rtt taa tab tae taf tar tat tba tbb tbe tbf tbr tbt te- tea teb tee tef ter tet tfa tfb tfe tff tfr tft tra trb tre trf trr trt tta ttb tte ttf ttr ttt

a-be aaaa aaab aaae aaaf aaar aaba aabb aabt aaea aafa aafb aaff aara aare aart aata aatf aatt abaa abab abae abaf abar abat abb- abba abbb abbe abbr abbt abee aber abet abff abra abta aeaf aeer aer- aera aeta aetf aetr aett afaa afar afat afee afer afet affa afft afr- afra afre afta afte arab arae araf arar arat arba arbe area aree aref aret arfa arfb arff arft arr- arra arre arrr arrt arta arte artr at-t ataa atab atae atar atat atea atee atef ater atfb atfe atra atre atta atte attr baaa baaf baar baat baba babb babe babr baer baff baft bar- bara barb bare barf barr bart bata bate batf batt bbbb bbeb bbet beaf bear beat beba bebb bebe beeb beef beer beet befa befe beff beft bera bere berr bert beta bete bett bfta bftt brab brae braf brat brea breb bree bref brer bret brrr btaa btaf btrt bttb eaaf eaba eafb eara earb eare eart eata eate ebba ebbr eber eeea eeee eefa eefe eera eeta eete efab efbr efet effa eft- efta eraf erat erba erbb erbe ereb erer eret erft erra erre erta etat etbr etee eter etfa etfb etfe etra etre etta ette faaa faba fabe faeb fafa fafe faff fara farb fare farr fart fata fate fatf fatt fbar feaf fear feat feba feeb feer feet fefe feff fera ferb fere ferr fert feta fete fetr fett ffar ffee ffff ffrr fftf frab frae frat frea free fret frta ftea fter raab raaf raat raba rabb rabe raef raer rafa rafe raff raft rara rarb rare rarf rata rate ratf ratt rbaf rbbb rbbr rea- reae reaf rear reat reba rebb rebe reeb reef reet refe reff refr reft rera rere rert reta rete retr rett rfae rfef rrat rrrr rtbf rtee rtfb taa- taaf taar taat taba tabb tabe taer tafa tafe taff taft tara tarb tare tarf tarr tart tata tatb tate tatr tatt tbaf tbar tbrb tbta tear teat teba teef teer teet teff teft ter- tera tere terf terr teta tete tetr tett tfae tfeb traa trab trae traf trat tre- trea tree tref tret trfr trra trte trtr ttab ttbb tter ttfa ttff tttt

-aaa- -tree aaaee aaata aabaa aabba aabra aaeaf aafat abaab ababa ababe abaer abaft abara abare abate abbar abbat abbet abear abeat abeba abebe abeer abeet abera abere aberr abert abfab abrar abtaa abtaf abtar aeaea aebbe aetat aeter afara afare afate afear afefe afere affer afree afret aftab aftar after aftra aftre ar-ab araat arab- araba arabe araea araft arara arare arata arate arbab arbar arbat arbee arber arbet arbre areae arear areat areef areet arere arete arett arfe arrea arret artar artat artea arter atara atbar atbat atear ateat ater- aterr atete atrab atraf atree attar attea atter attra baabe baart baata baate babar babee baber babra baert bafat baffa bafra bafta baraa barab barar barat barba barbe barea barer baret barff barra barre barta batab batar batat batea bater batfe batra batre batta batte bbart bbbee bbear be-er beafe beara beare beart beata beate bebar bebat beber bebra beebe beeft beete beffe berar berat berba berbe berea beret berra berre berta berte betar betee beter betra betre bett- betta bette braat braff brate bratt breba breef breer breet brera brere brett brrar brrrr btr-t eafre earar eatat eater eatre ebara ebart ebate ebber ebbet ebert eeeee efare efate efere efetf effer effet effra efrat efter erate erbaa erbar erbbe erber erear erere errat ertar erte erter etate etete etree etter fabae faber fabra fabre farab farbe fareb farer farfa farre farta fatar fatra feare febre feere ferae feret ferr- ferra ferre ferte feter fetfa fetta fette ffatt fraba frata frate frear freat freea freer freet frera frere freta frett ftrtt ra-ra raaba raabe raaff rabab rabat rabba rabbe rabet rabta raeff rafar rafat rafer raffa raffe rafft rafta rafte rarae raraf rareb raree rarer ratba rateb rater ratra ratta ratte reafe rear- reata reate rebab rebar rebat rebbe reber rebet rebra reefa reefe reeft reere refar refer refet reffe rere- reree reret retab retar retee reter retta rette t-ara t-bar ta-ra ta-ta taart tabae tabaf tabar tabat taber tabet tabra tabre tafer taraf tarar tarat taree tarer taret tarfa tarra tarre tarta tarte tartt tataa tataf tatar tatee tater tatra tatre tatta tbtbt teaba teaer tear- teara teare teart tebar tebat teber tebet tefe tefra tera- terat teret terra terre tert- tetar tetea teter tetr- tetra tette traba traer trafe trata trate tratt treaf treat treba treer treet trefa trefe treff trere treta trete