a-be a-ii a-iv aaaa aaab aaae aaai aaav aaba aabb aabi aabt aaea aaev aaib aaii aata aatt aava abaa abab abae abai abat abb- abba abbb abbe abbi abbt abee abet abia abib abie abit abta abva aebi aeit aeta aett aeva aiai aiba aiea aiee aiet aiia aiib aita aite aiti aitt aiva at-t ataa atab atae atai atat atea atee atei atia atie atit atta atte atti atvi avab avat avea avia avie avit aviv avva ba-i baaa baat baba babb babe babi baia baib baie bait bata bate bati batt bava bave bavi bbbb bbeb bbet beat beav beba bebb bebe bebi beeb beet beia beit beta bete beti bett betv biat biba bibb bibe bibi bieb biet bita bite bitt bive bivi btaa btie bttb btvi eaba eata eate eati eave ebba ebit eeea eeee eeta eete eeva eiei eita eitb eiti etai etat etee etta ette etti evae evat evea evet evia evie i-be iaaa iaai iaat iaba iaea iaia iata iate iati iava ibat ibea ibet ibia ibie ibtb ieat ieet ieie ieta iett ietv ieva iiie iiii iiit iita iitt itaa itai itat itbe itea itet itia itie itta ivai ivbv ivea ivie taa- taat taba tabb tabe tabi taia tait tata tatb tate tati tatt tatv tava tave tavi tbit tbta tbvi teat teba teet teev teia teie teta tete teti tett teva tiaa tiab tiba tibi tie- tiea tiee tiei tiet tiit tita tite titi titt tiva tivi ttab ttbb tttt tvtv vaat vaia vaie vait vata vate vati vatt vava veat veba veet veia veie veii veit veta vete veti veve vevi viae vibe viet viii vita vite viti vitt viva vive vivi vt-i vvvv