a-be a-ya aaaa aaab aaac aaad aaae aaba aabb aabc aabd aabt aaby aaca aacb aacc aacd aace aact aacy aada aadc aade aadt aaea aaec aata aatc aatt abaa abab abac abad abae abat abay abb- abba abbb abbe abbt abby abca abcb abcc abcd abct abda abdy abec abed abee abet abey abta abyc abye abyt abyy ac-t acaa acab acac acad acae acat acba acca accc accd acce acct accy acda acdb acdc acde acdt ace- acea acec aced acet acey acta actc acte actt adaa adab adac adad adae adat aday adba adbc adcc adda addc addd adde addy adea adeb adee adet adey adta adya adye adyt aeac aeby aecb aect aede aedt aeta aetc aett at-t ataa atab atac atad atae atat atay atca atcc atdt atea atec ated atee atta atte atty atya ayad ayat ayay ayca ayce ayda ayed ayta ayya baaa baad baat baba babb babe baby bac- baca bacc bace bact bada badb badd bade bady baed bata batc bate batt baty baya baye bayt bbad bbay bbbb bbdd bbeb bbet bcaa bcat bcbc bcca bccc bcda bcde bcec bcet bctc bday bdbc bddc bead beat beay beba bebb bebe beby beca beda bede beeb beed beet beey beta betc bete bett beya beye beyt btaa btcc btdt btec bttb byce byde byed byte byyd c-cd caaa caab caac caat caba cabe caby cac- caca cacc cace cada cadc cadd cade cady caec cat- cata catb catc catd cate catt caty caye cbac cbat cbbc cbca cbcc cbce cbct cbdb cbdc cbea cbec cbee cbet cbta cbtc cbyt ccaa ccab ccac ccad ccat ccba ccbc ccca cccb cccc ccdc cced ccee cctb cctc cctt cd-e cdaa cdac cdad cday cdba cdda cddb cdec ceac cead ceat ceba cec- ceca cece cect ceda cedd cede cedt cedy ceeb ceec cet- ceta cete ctab ctae ctba ctca ctec ctta cya- cyaa cyba cybb cybc cyc- cyca cycb cycc cyt- cyta cytb cyte cyy- cyyc daab daad daae daba dabb dabt daca dace dact dada dade dady daeb data date datt daya daye dayt dbcc dbtt dc-y dcbc dcca dccb dccc dcct dcdb dctc dday dddd deac dead deae deba debe debt deby dec- deca decc decd dece dect deda dedd dede deeb deed deet deta dete deya deye dtaa dtac dtcc dted dya- dyab dyac dyad dyat dybe dybt dycd dyce dydd dyde dyea dyed dyey dyt- dytc dyty eaba eaca eacc eada eadb eadd eady eaec eata eate ebac ebay ebba ebbc ebby ebcc ebed ebya ecaa ecac ecad ecat ecbc ecbe ecca eccb eccc ecce ecct ecdc eced ect- ecta ectc ecyd edac edad eday edca edda eddc edde eddy ede- edea edta eeby eeca eede eeea eeee eeta eetc eete etat etbc etcc etec etee etta ette etty eyeb eyec eyed eyet eyey eyte taa- taat taba tabb tabc tabe taby taca tacc tace tact tacy tada tade taec tata tatb tate tatt taty taya taye tayt tayy tbca tbcb tbcc tbcd tbce tbta tcad tcby tcca tccc tcdd tctc tdac tddb teac tead teat teba teca tect teda tedd tede tedy teec teed teet teta tete tett teya teye ttab ttbb tttt ttyd tyce tydd tyde tydy tyee tyet tyta tytd tyte tytt tyty yaba yacc yacy yada yade yata yate yaya ybet ycab ycat yccc ycee yctc ydad yday ydee ydyt yead yeat yedd yede yeed yeet yeta yete yett yeye ytay yyyy