a-be a-ya aaaa aaab aaae aaaf aaap aaba aabb aabp aabt aaby aaea aaep aafa aafb aaff aapa aapt aata aatf aatt abaa abab abae abaf abap abat abay abb- abba abbb abbe abbt abby abee abet abey abff abpa abpp abta abye abyt abyy aeaf aeap aeby aeta aetf aett afaa afap afat afee afet affa afft affy afpa afpe afta afte aftp afty afye apap apat apay apba apea apep apet apfa apft appa appt appy apta apte aptt at-t ataa atab atae atap atat atay atea atee atef atep atfb atfe atta atte attp atty atya ayat ayay aypt ayta ayya baaa baaf baat baba babb babe baby baff baft bapa bape bapp bapt bata bate batf batt baty baya baye bayt bbay bbbb bbeb bbet beaf beap beat beay beba bebb bebe beby beeb beef beep beet beey befa befe beff beft beta bete bett beya beye beyt bfpp bfta bftt bpay bpea bptf btaa btaf btbp bttb byte eaaf eaba eafb eapp eata eate ebay ebba ebby ebya eeby eeea eeee eefa eefe eeta eete efab efet effa effy efpa eft- efta eftp efya epaa epee epfa eppa eppp eppy epta epte etap etat etee etfa etfb etfe etta ette etty eyeb eyet eyey eype eyte faaa faap faba fabe faeb fafa fafe faff fapa fape fapp fata fate fatf fatt faya faye fayt feaf feap feat feba feeb feet fefe feff fepa feta fete fetp fett feyt ffee ffff fftf fpaa ftea ftfy ftpe fyfe paap paat paba pabt paea paep pafa pafe paff papa papb pape papp papy pata pate patt paty pay- paya payb paye payp payt pbpa peab peap peat peay peba peep peet peff pepa pepe peta pete pett pety pfaa pfet pfff pfft pfte ppap ppfa pppa pppp ppta pptt ppye ptab ptaf pyat pyay pyep pyet pype pypy pyte pytt taa- taaf taat taba tabb tabe taby tafa tafe taff taft tapa tape tapp tapt tata tatb tate tatt taty taya taye tayt tayy tbaf tbta tbtp tbyf teat teba teef teet teff teft tepa tepe tepp teta tete tett teya teye tfae tfeb tfpt tftp tpap tppa tppp tpte tptp ttab ttbb ttfa ttff tttt tyee tyet tyfe tyff tyft typ- type typp typy tyta tyte tytt tyty yaaf yaba yafa yafe yaff yaft yapa yape yapp yata yate yaya ybet yeaf yeap yeat yeep yeet yefe yeff yeft yepe yepp yeta yete yett yeye yfet yfte ypfb ytay yyfe yyff yyyy