bbbb bbeb bbet bebb bebe bebi bebo beeb beej beet beij beit beo- beot bete beti beto bett betv bevo bibb bibe bibi bibo bieb biet biji bio- bioi biot bite bito bitt bive bivi bobb bobe bobi bobo boee boeo boet boi- boie boii boit boji bojo bojt boob booe boot botb bote boti boto bott bove bovi bovo btie btob bttb btvi ebbo ebit eboe eboo eeee eete eiei eiji eitb eiti eito ejit ejji ejob ejoo ejot eoto etee etio etoe ette etti etto etvo evet evie evje evoe evoo i-be ibet ibie ibot ibtb ieet ieie ieio iett ietv iiie iiii iiio iiit iioi iioo iitt ijet ijji iobi ioee ioii ioio ioit iooi iooo iote ioto itbe itet itie itoi itoo itto ivbv ivie jbob jbtv jebb jebe jeet jeit jetb jete jeti jett jibb jibe jibi jiet jije jiji jiti jito jive jobe jobo joee joie joio joit joji jojo joot joto jott jove jovi jovo o-eo obbo obet obie obit oboe oboi obot obvi oeti oiii oiti oobe oobi ooij ooji oooo ootb otee otit oto- otoe otoo otov otte otti otto ovee ovet ovi- ovie ovo- ovoo ovot tbit tbvi tebo teej teet teev teie tejo tete teti teto tett tibi tie- tiee tiei tieo tiet tiit tiji tijo tite titi tito titt tivi tivo tobe tobi tobo tobt toee toei toet toie toit toji tojo toot tote toti toto tott tove tovo ttbb tteo ttoe tttt tvtv veet veie veii veit vete veti veto veve vevi vevo vibe viej viet viii viji vite viti vito vitt vive vivi vivo voei voet voie voio voit voot vote voto vt-i vvob vvvv