a-ya aaaa aaab aaad aaba aabb aabd aaby aada aadu abaa abab abad abau abay abb- abba abbb abby abda abdu abdy abua abud abuy abyy adaa adab adad aday adba adda addd addu addy adq- adua adub adya aqda aqu- aqua auaa auby ayad ayay ayda ayub ayya baaa baad baba babb babu baby bada badb badd badu bady baqa bau- baud baya bayu bbad bbau bbay bbbb bbbq bbdd bday buad buba bubb bubq bubu buda budb budd budu budy buqa buyu byyd daab daad daau daba dabb dabu dada dadu dady daub daud daya dayu dday dddd ddub dqdb duaa duab duad dub- duba dubb dubu duby duda dudd dudu duqu dya- dyab dyad dybq dybu dydd qada qaya qayu qqqq quaa quab quad quay quba quu- quy- uaua ubay ubba ubud udaa udad udau uday uuuu yaaq yaba yada yadu yaud yaya yayu ydad yday yuba yubu yuda yudu yuya yuyu yyyy