a-ya a-yo aaaa aaab aaar aaba aabb aaby aaoo aara aaro aaru abaa abab abar abau abay abb- abba abbb abbo abbr abby aboa abob aboo abor abou aboy abra abro abry abua abuy abyy aoba aora aorb arab arar arau aray arba arby aroa arob aroo aror arr- arra arro arrr arru arry arua arub ary- arya auaa auby auoy aur- aura auro auyo ay-o ayao ayar ayay ayoo ayou ayra ayry ayub ayur ayya baaa baar baba babb babo babr babu baby bar- bara barb baro barr baru bary bau- baur baya bayo bayu bbau bbay bbbb bboy bbyo boab boar boba bobb bobo bobu boby boob boor bor- bora boro borr boru bory boua bour bouy boya boyo brab brao brau bray broa brob broo bror brou brrr bry- brya bryo buar buba bubb bubo bubu buoy bur- bura burb buro burr buru bury buyo buyu byar byoa byob oaau oara oary obay obba obbo obby obor oboy obra obro ooaa ooba ooby oooo oora oory orab orao orar oray orba orbb orbo orbu orby oro- oror oroy orra orro orry orub orya our- oura ouro ouu- ouya ouyr oyou raab raba rabb rabo rabu raby raob rara rarb raro rary raua raub raya rayr rayu rbbb rbbr roab roar rob- roba robb robo robu roby roob roor rora roro roru rory roua roub rouy roya rrrr ruba rubb rubu ruby ruoy rura ruro ruru ruya ryba ryob uaru uaua ubar ubay ubba ubbo ubra uor- urao urau uray urba uro- uroa uroo urra urry urur uuuu uyar yaar yaba yabo yaou yara yarb yaro yarr yaru yary yaya yayo yayu ybor ybry yoar yoba yobo yoro yory youa youb your yoyo yuba yubu yura yury yuya yuyu yyyy