a-be aaaa aaab aaae aaba aabb aabt aaea aaoe aaoo aata aatt abaa abab abae abat abax abb- abba abbb abbe abbo abbt abee abet abez aboa abob aboo abot abox abta abza aeta aeto aett aetx aoba at-t at-x ataa atab atae atat atax atea atee ateo atex atez atob atoe atot atoz atta atte atto axat axez axo- axoa axto axxo aza- azab azat azaz azet azo- azoo azot azza azzo ba-x baaa baat baaz baba babb babe babo baez bata bate bato batt batz baxt baza baze bazo bbbb bbeb bbet bbox 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 boox booz bota botb bote boto bott boxa boza bozo btaa btex btob bttb bzoe bzzt bzzz eaba eata eate ebba ebbo eboe eboo ebox eeea eeee eeta eete eext eeze eota eoto etat etee etoe etox etta ette etto exa- exo- exta exte ezzo o-eo oate oaze obba obbo obea obet obex oboe obot obox oeax oeta oetz ooaa ooba oobe oooo ootb ooze otea otee oto- otoe otoo otta otte otto oxa- oxea oxo- oxox oxxo ozee ozet taa- taat taba tabb tabe tabo taoa tata tatb tate tato tatt tatz tax- taxa taxe taxo taxt taza taze tazo tazz tbox tbta teat teaz teba tebo teet teez teoz teta tete teto tett tetx tetz texa text teza tezz toab toat toba tobe tobo tobt toea toee toet tooa toot tota tote toto tott tox- toxa toxo toxt toza toze tozo ttab ttbb tteo ttoe tttt txaa tzzt xate xbee xbox xexe xezo xote xoxo xtea xxxo xxxx zaat zaba zabo zaxo zaza zeae zeba zebe zeta zete zeto zeze zoat zoax zobo zoea zoet zoo- zoot zota zote zott zotz zoza zozo ztoa zzzz