a-ya aaaa aaab aaba aabb aabt aaby aata aatt abaa abab abat abau abay abb- abba abbb abbt abby abta abtu abua abut abuy abyt abyy at-t ataa atab atat atay atta attu atty atua atub atya auaa auby aut- auty ayat ayay ayta ayub ayya baaa baat baba babb babu baby bata batt batu baty bau- baya bayt bayu bbau bbay bbbb btaa bttb buat buba bubb bubu but- buta butt buty buyu taa- taat taba tabb tabu taby tata tatb tatt tatu taty taua taub taut taya tayt tayu tayy tbta ttab ttbb tttt tuat tuay tuba tubb tubu tuta tutt tutu tuty tuya tyta tytt tyty uata uatu uaua ubay ubba utau utby uttu uuta uuuu yaba yata yaya yayu ytay yuba yubu yuta yutu yuty yuya yuyu yyyy