a-be a-ya aaaa aaab aaac aaae aaar aaba aabb aabc aabt aaby aaca aacb aacc aace aacr aact aacy aaea aaec aara aarc aare aart aata aatc aatt abaa abab abac abae abar abat abay abb- abba abbb abbe abbr abbt abby abca abcb abcc abcr abct abec abee aber abet abey abra abrc abry abta abyc abye abyt abyy ac-t acaa acab acac acae acar acat acba acca accc acce acct accy ace- acea acec acer acet acey acr- acra acrc acre acrr acry acta actc acte actt aeac aeby aecb aect aeer aer- aera aerc aery aeta aetc aetr aett arab arac arae arar arat aray arba arbe arby arc- arca arce arct area arec aree aret arey arr- arra arrc arre arrr arrt arry arta artc arte artr arty ary- arya arye at-t ataa atab atac atae atar atat atay atca atcc atcr atea atec atee ater atra atrc atre atry atta atte attr atty atya ayar ayat ayay ayca ayce ayer ayra ayre ayry ayta ayya baaa baar baat baba babb babe babr baby bac- baca bacc bace bact baer bar- bara barb barc bare barr bart bary bata batc bate batt baty baya baye bayt bbay bbbb bbeb bbet bbrc bcaa bcar bcat bcbc bcca bccc bcec bcer bcet bcra bctc bear beat beay beba bebb bebe beby beca beeb beer beet beey bera berc bere berr bert bery beta betc bete bett beya beye beyt brab brac brae brat bray brca brcb brce brea breb brec bree brer bret brey brrr brtc bry- brya brye btaa btcc btec btrc btrt btry bttb byar byce byer byre byrt byte caaa caab caac caat caba cabe caby cac- caca cacc cace cacr caec caer cara carb carc care carr cart cary cat- cata catb catc cate catt caty caye cayr cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbea cbec cbee cber cbet cbre cbrt cbry cbta cbtc cbyt ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc ccee ccra ccrc ccre ccrt cctb cctc cctt ceac cear ceat ceba cec- ceca cece cect ceeb ceec cer- cera cerc cere cert cery cet- ceta cete crab crac crar crat cray crbc crca crcc crce crcr cre- crea creb crec cree cret crrt crtc cry- crya cryb ctab ctae ctba ctca ctec ctrc ctta cya- cyaa cyar cyba cybb cybc cyc- cyca cycb cycc cyra cyre cyrt cyt- cyta cytb cyte cyy- cyyc eaba eaca eacc eaec eara earb eare eart eary eata eate ebac ebay ebba ebbc ebbr ebby ebcc eber ebya ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct ecra ecrc ecrr ect- ecta ectc eeby eeca eeea eeee eera eerc eery eeta eetc eete erat eray erba erbb erbe erca ercc erce ereb erec erer eret erra errc erre erta erya eryc erye etat etbc etbr etcc etec etee eter etra etre etta ette etty eyeb eyec eyer eyet eyey eyra eyre eyry eyte eyyr raab raat raba rabb rabe raby rac- raca racc race ract racy raec raer rara rarb rare rary rata rate ratt raty raya raye rayr rayt rbbb rbbr rcac rcbc rccb rccc rcet rctc rcyc rea- reac reae rear reat reay reba rebb rebe reca recc rece recr rect recy reeb reet rera rere rert rery reta rete retr rett rety reya reye rrat rrrr rtca rtcc rtce rtee ryat ryba rybe ryeb ryet rytt ryyt taa- taar taat taba tabb tabc tabe taby taca tacc tace tact tacy taec taer tara tarb tarc tare tarr tart tary tata tatb tate tatr tatt taty taya taye tayt tayy tbar tbca tbcb tbcc tbce tbrb tbta tcby tcca tccc tctc teac tear teat teba teca tecr tect teec teer teet ter- tera terc tere terr tery teta tete tetr tett teya teye teyr traa trab trac trae trat tray trca trcc tre- trea trec tree tret trey trra trtc trte trtr try- trya tryb trye ttab ttbb tter tttt tyar tyce tyee tyer tyet tyr- tyra tyre tyrr tyta tyte tytt tyty yaar yaba yacc yacy yara yarb yare yarr yart yary yata yate yaya yber ybet ybry ycab ycat yccc ycee yctc year yeat yeer yeet yerb yere yerr yert yery yeta yete yett yeye yeyr ytay ytre yyyy