a-be aaaa aaab aaac aaae aaam aaba aabb aabc aabm aabt aaca aacb aacc aace aacm aact aacu aaea aaec aaem aama aamb aamc aame aata aatc aatt abaa abab abac abae abam abat abau abb- abba abbb abbe abbt abca abcb abcc abct abec abee abet abma abmb abmc abmt abta abtu abua abue abum abut ac-t acaa acab acac acae acat acba acca accc acce accm acct accu ace- acea acec acem acet acma acmc acme acmu acta actc acte actt actu acu- acue acum acut aeac aecb aect aemt aeta aetc aett amaa amac amae amam amat amb- amba ambe ambu amca amcc amec amee amet ameu amm- amma amme ammu amta amtc amte amua amum at-t ataa atab atac atae atat atca atcc atea atec atee atem atm- atma atme atmu atta atte attu atua atub atuc atum auaa aube auca auce auct auma aut- aute baaa baam baat baba babb babe babm babu bac- baca bacc bace bact bama bamb bamc bame bamm bamu bata batc bate batt batu bau- baum bbau bbbb bbcm bbeb bbet bcaa bcam bcat bcbc bcca bccc bccm bcec bcet bcma bctc bcuc beam beat beau beba bebb bebe beca becu beeb beem beet bema beme bemu beta betc bete bett betu bmaa bmce bmtc btaa btcc btec bttb buat buba bubb bube bubu buca bucc buce bucu buea buem bueu bum- buma bumb but- buta bute butt caaa caab caac caam caat caba cabe cabu cac- caca cacc cace cacm caec caem caeu cama camb camc came camm camt cat- cata catb catc cate catm catt catu cauc caum caut cbac cbat cbbc cbca cbcc cbce cbcm cbct cbcu cbea cbec cbee cbet cbme cbta cbtc ccaa ccab ccac ccam ccat ccba ccbc ccca cccb cccc cccm cccu ccee ccma ccmb ccmc ccmm cctb cctc cctt ccuc ccut ceac ceat ceba cebu cec- ceca cece cecm cect ceeb ceec ceem cema cemb ceme cemm cemu cet- ceta cete cmaa cmac cmba cmbc cmcc cmea cmec cmmb cmmc cmta cmtc cmtu ctab ctae ctba ctca ctec ctma ctta cuau cub- cuba cubb cube cuca cucc cuce cucm cum- cuma cume cumt cut- cuta cutc cute cutt eaba eaca eacc eaec eama eame eata eate ebac ebam ebba ebbc ebcc ecaa ecac ecam ecat ecbc ecbe ecca eccb eccc ecce eccm ecct ecem ecma ect- ecta ectc ecua eeca eeea eeee eeta eetc eete eetu emac emae emam emba embe emcc emet emeu emma emme emmu emta emte etam etat etbc etcc etec etee etem etta ette ettu etua euba eubc eumc maaa maac maam maat maba mabe mabu mac- maca macb macc mace mact macu maee maem mama mamc mame mamu mata matc mate matt matu maua maum maut mbac mbam mbba mbca mbta mcaa mcac mcat mcba mcbc mcca mccc mcmc mcmt mctc mctu meat mebe mec- meca mecc mece meem meet mema memc meme memu met- meta mete mett metu meum mmaa mmab mmac mmcc mmcm mmct mmea mmmc mmmm mtaa mtab mtac mtbc mtuc muac mube muc- mucc muce mucu muee muet muma mume mumm mumu muta mute mutt mutu muut taa- taat taba tabb tabc tabe tabu taca tacc tace tact taec taem tama tamc tame tamm tamu tata tatb tate tatt tatu taua taub tauc taue taum taut tbca tbcb tbcc tbce tbta tcam tcca tccc tccu tctc teac team teat teba tebu teca tect teec teem teet tema teme temu teta tete tett tetu teut tmaa tmac tmbc tmca tmcc tmcm tmtt ttab ttbb ttma tttt tuae tuam tuat tuba tubb tube tubu tuca tucc tuet tuma tumb tume tumu tuta tute tutt tutu tuum uabc uaca uamc uata uatu uaua ubac ubba ubbe ubet ucam ucat ucbc ucca ucea ucmc ucua ucut ueba umaa umac umb- umba umbe umec umet umma umut utac utau utec utmb uttu uuta uuuu