a-be a-ii aaaa aaab aaae aaaf aaai aaar aaba aabb aabi aabt aaea aafa aafb aaff aafi aaib aaii aaoe aaoo aara aare aari aaro aart aata aatf aatt abaa abab abae abaf abai abar abat abb- abba abbb abbe abbi abbo abbr abbt abee aber abet abff abia abib abie abir abit aboa abob abof aboo abor abot abra abri abro abta aeaf aebi aeer aeio aeit aer- aera aeri aero aeta aetf aeto aetr aett afaa afao afar afat afee afer afet affa affi affo afft afia afib afif afir afit afoa afoe afoo afor afr- afra afre afri afro afta afte aiai aiba aibo aiea aiee aiet aiff aiia aiib aiir aioi aira aire airi airo airt aita aite aitf aiti aitr aitt aoba aora aorb aort aotf arab arae araf arai arar arat arba arbe arbi area aree aref arei areo aret arfa arfb arff arft aria arib arie arif arii ario arit aroa arob aroe aroi aroo aror arr- arra arre arri arro arrr arrt arta arte arti arto artr at-t ataa atab atae atai atar atat atea atee atef atei ateo ater atfb atfe atia atie atif atit atob atoe atof atoi ator atot atra atre atri atro atta atte atti atto attr ba-i baaa baaf baar baat baba babb babe babi babo babr baer baff bafo baft baia baib baie baio bair bait bar- bara barb bare barf bari baro barr bart bata bate batf bati bato batt bbbb bbeb bbet beaf bear beat beba bebb bebe bebi bebo beeb beef beer beet befa befe beff befo beft beia beir beit beo- beof beor beot bera bere beri bero berr bert beta bete beti beto bett bfta bftt biaf biao biar biat biba bibb bibe bibi bibo bieb bief bier biet bifa biff bifi bio- bioi biot bira birb bire biri biro birr birt bita bite bito bitt boab boai boar boat boba bobb bobe bobi bobo boea boee boef boeo boer boet bofa bofe boff boi- boie boii boit boob booe boof boor boot bor- bora bore borf bori boro borr bort bota botb bote boti boto bott brab brae braf brai brao brat brea breb bree bref brei breo brer bret bria brie brio brit broa brob broe broo bror brot brrr btaa btaf btie btob btor btrt bttb eaaf eaba eafb eaif eara earb eare earo eart eata eate eati ebba ebbo ebbr eber ebit eboe eboo ebor ebro eeea eeee eefa eefe eera eero eeta eete efab efbr efeo efet effa effi efit efor eft- efta eiao eiei eier eira eire eita eitb eiti eito eitr eoir eora eore eori eota eoto eraf erat erba erbb erbe ereb erei erer eret erft eria erie erio erit erob eroe eroi eroo erra erre erro erta etai etat etbr etee eter etfa etfb etfe etio etoe etra etre etro etta ette etti etto faaa faba fabe fabi fabo faeb fafa fafe faff fafi fafo faie faio fair fait fara farb fare faro farr fart fata fate fatf fati fato fatt fbar feaf fear feat feba febo feeb feer feet fefe feff fefi fefo feia feie feio feir feit feof fera ferb fere fero ferr fert feta fete feti fetr fett ffar ffee ffff ffii ffrr fftf fiaa fiaf fiar fiat fiba fibe fief fier fifa fife fiff fifi fifo fift fiii fioe fior fira fire fita fite fiti fitt foaf foar foba fobt foer fofo foia foie foof foot for- fora forb fore fori foro forr fort fota fote foti foto fott frab frae frat frea free frei freo fret fria frib frie frio frit frob froe frot frta ftea fter ftii i-be iaaa iaai iaat iaba iaea iafe iaff iaia iara iare iart iata iate iati ibar ibat ibea ibet ibfi ibia ibie ibot ibra ibri ibro ibtb ieat ieet ieie ieio iera iere ieri ieta ietf iett ifaa ifae ifao ifar ifat ifbb ifer ifit ifor ifra ifrb ifrf ifri ifta ifto iifa iiie iiii iiio iiit iioi iioo iira iita iitr iitt ioba iobi ioee ioii ioio ioit ioof iooi iooo iora iore iori iota iote iotf ioto irae iraf irai irao irar irbe iree irer irfe iri- iria irie irio irob irra irre irri irta irte irtf irti itaa itaf itai itar itat itbe itea iter itet itfa itia itie itif itof itoi itoo itor itra itrf itri itta ittf itto o-eo oaer oafo oara oare oate obai obba obbo obea ober obet obia obie obit oboe oboi obor obot obra obre obri obro oera oere oeta oeti ofer off- offa offe offo offr ofit ofor ofra ofre ofta oiba oier oiii oira oire oirt oita oiti ooaa ooba oobe oobi ooer ooff ooia oooo oora oore oort ootb orab orae orai orao orar orat orba orbb orbe orbi orbo ore- orea oreb oreo orer orfe orff orfi ori- oria orie orif orio orit oro- oroe orof oror orot orra orri orro orta orte orto otar otea otee oter otif otit oto- otoe otof otoo otor otra otre otro otta otte otti otto raab raaf raat raba rabb rabe rabi rabo raef raer rafa rafe raff rafi raft raia raie raif raii rair rait raob rara rarb rare rarf rari raro rata rate ratf rati rato ratt rbaf rbbb rbbr rea- reae reaf reao rear reat reba rebb rebe rebo reeb reef reet refe reff refi refr reft reia reif reii reir reit reof reot rera rere reri rero rert reta rete reti reto retr rett rfae rfef riaa riab riai riat rib- riba ribe ribo rief rier riet rifa rife riff rift riia riif riot rire riri rita rite riti rito ritt roab roaf roar roat rob- roba robb robe robi robo robt roea roer roet rofe roff rofo roia roif roio roir roit roob roof rooi roor root rora rore rori roro rort rota rote roti roto rotr rott rrat rrif rrrr rtai rtbf rtee rtei rtfb taa- taaf taar taat taba tabb tabe tabi