a-ya aaaa aaab aaar aaba aabb aabt aaby aara aart aata aatt abaa abab abar abat abay abb- abba abbb abbr abbt abby abra abry abta abyt abyy arab arar arat aray arba arby arr- arra arrr arrt arry arta artr arty ary- arya at-t ataa atab atar atat atay atra atry atta attr atty atya ayar ayat ayay ayra ayry ayta ayya baaa baar baat baba babb babr baby bar- bara barb barr bart bary bata batt baty baya bayt bbay bbbb brab brat bray brrr bry- brya btaa btrt btry bttb byar byrt raab raat raba rabb raby rara rarb rary rata ratt raty raya rayr rayt rbbb rbbr rrat rrrr ryat ryba rytt ryyt taa- taar taat taba tabb taby tara tarb tarr tart tary tata tatb tatr tatt taty taya tayt tayy tbar tbrb tbta traa trab trat tray trra trtr try- trya tryb ttab ttbb tttt tyar tyr- tyra tyrr tyta tytt tyty yaar yaba yara yarb yarr yart yary yata yaya ybry ytay yyyy