a-be aaaa aaab aaae aaam aaba aabb aabm aabt aaea aaem aama aamb aame aata aatt abaa abab abae abam abat abau abb- abba abbb abbe abbt abee abet abma abmb abmt abta abtu abua abue abum abut aemt aeta aett amaa amae amam amat amb- amba ambe ambu amee amet ameu amm- amma amme ammu amta amte amua amum at-t ataa atab atae atat atea atee atem atm- atma atme atmu atta atte attu atua atub atum auaa aube auma aut- aute baaa baam baat baba babb babe babm babu bama bamb bame bamm bamu bata bate batt batu bau- baum bbau bbbb bbeb bbet beam beat beau beba bebb bebe beeb beem beet bema beme bemu beta bete bett betu bmaa btaa bttb buat buba bubb bube bubu buea buem bueu bum- buma bumb but- buta bute butt eaba eama eame eata eate ebam ebba eeea eeee eeta eete eetu emae emam emba embe emet emeu emma emme emmu emta emte etam etat etee etem etta ette ettu etua euba maaa maam maat maba mabe mabu maee maem mama mame mamu mata mate matt matu maua maum maut mbam mbba mbta meat mebe meem meet mema meme memu met- meta mete mett metu meum mmaa mmab mmea mmmm mtaa mtab mube muee muet muma mume mumm mumu muta mute mutt mutu muut taa- taat taba tabb tabe tabu taem tama tame tamm tamu tata tatb tate tatt tatu taua taub taue taum taut tbta team teat teba tebu teem teet tema teme temu teta tete tett tetu teut tmaa tmtt ttab ttbb ttma tttt tuae tuam tuat tuba tubb tube tubu tuet tuma tumb tume tumu tuta tute tutt tutu tuum uata uatu uaua ubba ubbe ubet ueba umaa umb- umba umbe umet umma umut utau utmb uttu uuta uuuu