a-be a-ii aaaa aaab aaae aaai aaap aaba aabb aabi aabp aabt aaea aaep aaib aaii aaoe aaoo aapa aapi aapo aapt aata aatt abaa abab abae abai abap abat abb- abba abbb abbe abbi abbo abbt abee abet abia abib abie abit aboa abob aboo abot abpa abpi abpp abta aeap aebi aeio aeit aeta aeto aett aiai aiba aibo aiea aiee aiet aiia aiib aioi aipa aipe aipi aita aite aiti aitt aoba aopo apai apao apap apat apba apea apep apet api- apia apie apio apip apit apo- apoe apoo apop apot appa appt apta apte apti aptt at-t ataa atab atae atai atap atat atea atee atei ateo atep atia atie atip atit atob atoe atoi atop atot atta atte atti atto attp ba-i baaa baat baba babb babe babi babo baia baib baie baio bait bapa bape bapi bapp bapt bata bate bati bato batt bbbb bbeb bbet beap beat beba bebb bebe bebi bebo beeb beep beet beia beit beo- beot bepo beta bete beti beto bett biao biap biat biba bibb bibe bibi bibo bieb biet bio- bioi biot bipa bipp bita bite bito bitt boab boai boat boba bobb bobe bobi bobo boea boee boeo boep boet boi- boie boii boit boob booe boop boot bopa bope bopp bota botb bote boti boto bott bpai bpea bpoe bpot bpti btaa btbp btie btob bttb eaba eaop eapp eata eate eati ebba ebbo ebit eboe eboo ebpo eeea eeee eeta eete eiao eiei eipo eita eitb eiti eito eota eoto epaa epee epi- epia epie epip epit epot eppa eppo eppp epta epte etai etap etat etee etio etoe etta ette etti etto i-be iaaa iaai iaap iaat iaba iaea iaep iaia iapa iapp iapt iata iate iati ibat ibea ibet ibia ibie ibot ibtb ieat ieet ieie ieio iepa ieta iett iiie iiii iiio iiit iioi iioo iiop iipa iita iitt ioba iobi ioee ioii ioio ioit iooi iooo iota iote ioto ipat ipba ipea ipet ipie ipoe ipop ippa ippo ipta ipto itaa itai itap itat itbe itea itep itet itia itie itoi itoo itpa itta itto o-eo oapi oate obai obba obbo obea obet obia obie obit oboe oboi obot oepa oeta oeti oiba oiii oita oiti ooaa ooba oobe oobi ooia oooo ootb ootp opap opei opep opet opia opie opii opio opit opo- oppa oppi oppo opti opto otap otea otee otep otit oto- otoe otoo otpp otta otte otti otto paap paat paba pabt paea paep paia paib paie paio paip pait papa papb pape papi papp pata pate pati pato patt pbpa peab peai peap peat peba peep peet peia peio peip peit pepa pepe pepi pepo peta pete peti peto pett piai piao piat pibb pibi piea piep piet piia piip piob piot pipa pipe pipi pipo pipp pita pite piti pito pitt poat poba pobo poea poet poia poio poop poot pop- popa pope popi popo popp popt pota pote poti poto pott ppap ppib ppie ppoa pppa pppo pppp ppta pptt ptab ptop taa- taat taba tabb tabe tabi tabo taia taio taip tait taoa tapa tape tapi tapo tapp tapt tata tatb tate tati tato tatt tbit tbta tbtp teat teba tebo teet teia teie teip tepa tepe tepi tepp teta tete teti teto tett tiaa tiab tiao tiba tibi tie- tiea tiee tiei tieo tiep tiet tiit tiop tip- tipa tipe tipi tipo tipp tipt tita tite titi tito titp titt toab toat toba tobe tobi tobo tobt toea toee toei toet toie toit tooa toot top- topa tope topi topo topp topt tota tote toti toto tott tpap tpia tppa tppp tpte tptp ttab ttbb tteo ttoe ttop tttt