a-ya aaaa aaab aaas aaba aabb aaby aasa aass aasu aaus abaa abab abas abau abay abb- abba abbb abbs abby abs- absa abss absu abua abus abuy abys abyy asaa asab asas asau asay asba asbu asby assa asss assu assy asub asus asya auaa auby ausa ausu ayas ayay aysu ayub ayya baaa baas baba babb babs babu baby basa bass basu bau- baya bays bayu bbas bbau bbay bbbb bbbs bsaa bsas buba bubb bubs bubu busa buss busu busy buus buys buyu byas bysb byss bysy saab saas saba sabb sabs sabu sasa sass saua saus saya says sbaa sbas sbbs sbsa sbus ssaa ssab ssas ssau ssby sssa sssb ssss suas suay sub- suba subb subs sus- susa suss susu susy suus suya suyu syss uasa uaua ubay ubba us-a usaa usas usba usbs ussa ussb usss ussu ussy usua usus uuuu uyas yaas yaba yasa yass yasu yaya yays yayu ybas ybbs ysay ysby yssu ysyb yuba yubu yusa yuya yuyu yyyy