-ana aaaa aaab aaad aaan aaav aaba aabb aabd aada aana aand aang aava abaa abab abad abag aban abb- abba abbb abda abgd abva abvd adaa adab adad adag adan adba adda addd addn adna advb agad agag agan agav agba agda agga agna agva ana- anaa anab anad anag anan anba anbb and- anda ang- anga anna annb avab avan avda avva baaa baad baan baba babb bada badb badd baga bagg bagn bana band bang bann bava bbad bbbb bbdd bbga bbng bdav bdna bgan bgdv d-na daab daad daag daan daba dabb dada daga dagg dagv dana dand dang dann dava dbag dddd dnaa dnab dnad dnag dnan dvda gaba gabb gada gadd gaga gagg gana gand gang gann gava gbag gban gddb gdna gggg gnaa gnav gvvv naaa naab naad naag naan naba nada naga nan- nana nanb nand nang nann nava navv nbaa nbad ndaa nddb ndga ndna ngab ngan nndb nngn nnnn nvda vaad vaan vada vag- vaga vagg vagn vana vand vang vann vava vnav vnbg vvvv