a-ya aaaa aaab aaad aaap aaba aabb aabd aabp aaby aada aadu aapa aaup abaa abab abad abap abau abay abb- abba abbb abby abda abdu abdy abpa abpd abpp abua abud abuy abyy adaa adab adad adap aday adba adda addd addu addy adp- adua adub adya apap apay apba apda apdd apdu appa appd appu appy apua apud apup auaa auby ayad ayay ayda ayub ayup ayya baaa baad baba babb babu baby bada badb badd badu bady bapa bapp bapu bau- baud baya bayu bbad bbau bbay bbbb bbdd bday bpay bpda buad buba bubb bubu buda budb budd budu budy bupa buyu byyd daab daad daap daau daba dabb dabp dabu dada dadu dady dapa dapp dapu daub daud daya dayu dbpd dday dddd ddub dpaa dppa dpyd duaa duab duad dub- duba dubb dubu duby duda dudd dudu dupa dya- dyab dyad dyap dybu dydd paap paba pabu pada padd padu pady papa papb papp papy paua paud paup pay- paya payb payp pbpa pdpa ppad ppap pppa pppd pppp pubu pudu pupa pupu pupy puy- puya pyay pypy uaua ubay ubba ubud udaa udad udau uday udpd upay upby upda uppa uppp uppu uppy upup upya uuuu yaba yada yadu yapa yapp yaud yaup yaya yayu ydad yday yuba yubu yuda yudu yuya yuyu yyyy