a-ya aaaa aaab aaad aaaf aaba aabb aabd aaby aada aafa aafb aafd aaff abaa abab abad abaf abay abb- abba abbb abby abda abdy abff abyy abza adaa adab adad aday adba adda addd addy adfa adya afaa afad afdb affa affy ayad ayay ayaz ayda ayya aza- azab azad azay azaz azza baaa baad baaf baaz baba babb baby bada badb badd bady baff baya bayz baza bazy bbad bbay bbbb bbdd bday byyd bzyb bzzz daab daad daba dabb dada dady dafa daff daya dayz dazy dazz dday dddd dfaf dffa dya- dyab dyad dyaf dydd dyf- dzbb dzbf dzyb faaa faad faba fabd fada fadd fady fafa faff faya fayd faza fday ffff fzdz yaaf yaba yada yafa yaff yaya yaza yazd yazz ydad yday yyff yyyy zaba zaby zada zady zaya zaza zydy zzzz