a-be aaaa aaab aaae aaba aabb aabt aaea aaoe aaoo aata aatt abaa abab abae abat abb- abba abbb abbe abbo abbt abee abet abez aboa abob aboo abot abta abza aeta aeto aett aoba at-t ataa atab atae atat atea atee ateo atez atob atoe atot atoz atta atte atto aza- azab azat azaz azet azo- azoo azot azza azzo baaa baat baaz baba babb babe babo baez bata bate bato batt batz baza baze bazo bbbb bbeb bbet beat beba bebb bebe bebo beeb beet beo- beot beta bete beto bett betz beze boab boat boaz boba bobb bobe bobo boea boee boeo boet boob booe boot booz bota botb bote boto bott boza bozo btaa btob bttb bzoe bzzt bzzz eaba eata eate ebba ebbo eboe eboo eeea eeee eeta eete eeze eota eoto etat etee etoe etta ette etto ezzo o-eo oate oaze obba obbo obea obet oboe obot oeta oetz ooaa ooba oobe oooo ootb ooze otea otee oto- otoe otoo otta otte otto ozee ozet taa- taat taba tabb tabe tabo taoa tata tatb tate tato tatt tatz taza taze tazo tazz tbta teat teaz teba tebo teet teez teoz teta tete teto tett tetz teza tezz toab toat toba tobe tobo tobt toea toee toet tooa toot tota tote toto tott toza toze tozo ttab ttbb tteo ttoe tttt tzzt zaat zaba zabo zaza zeae zeba zebe zeta zete zeto zeze zoat zobo zoea zoet zoo- zoot zota zote zott zotz zoza zozo ztoa zzzz