a-ya aaaa aaab aaba aabb aabt aaby aata aatt abaa abab abag abat abay abb- abba abbb abbt abby abta abyt abyy abza agag agat agay agaz agba agga aggy agta agya at-t ataa atab atat atay atta atty atya ayat ayay ayaz ayta ayya aza- azab azat azay azaz azza baaa baat baaz baba babb baby baga bagg bagt bagy bata batt baty batz baya bayg bayt bayz baza bazy bbay bbbb bbga btaa bttb bygg bzyb bzzt bzzz gaba gabb gabt gaby gabz gaga gagg gata gatt gaya gaza gazy gbag ggbt gggg gtaa gtta gytt taa- taag taat taba tabb taby taga tagg tata tatb tatt taty tatz taya tayt tayy taza tazz tbta ttab ttbb tttt tyga tyta tytt tyty tzzt yaba yaga yata yaya yaza yazz ytay yyyy zaat zaba zaby zagg zaya zaza zgba zyg- zyga zzzz