a-ii a-ya aaaa aaab aaad aaai aaap aaba aabb aabd aabi aabp aaby aada aadi aaib aaii aapa aapi abaa abab abad abai abap abay abb- abba abbb abbi abby abda abdi abdy abia abib abid abiy abpa abpd abpi abpp abyy adaa adab adad adai adap aday adba adbi adda addd addi addy adia adib adip adp- adya aiai aiba aida aidb aidi aidy aiia aiib aiid aipa aipi aipy apai apap apay apba apda apdd api- apia apid apip appa appd appy ayad ayay ayda ayya ba-i baaa baad baba babb babi baby bada badb badd badi bady baia baib baid bapa bapi bapp baya bayi bbad bbay bbbb bbdd bday bdii biad biap biba bibb bibi bida bidi bipa bipp biya bpai bpay bpda byyd daab daad daap daba dabb dabp dada dadi dady daia daid dapa dapi dapp daya dayi dbpd dday dddd dia- diab diad diap diba dibb dibp diby dida didi didy diii dipa dipp diya diyi dpaa dppa dpyd dya- dyab dyad dyap dydd i-by iaaa iaai iaap iaba iadb iaia iapa iapp ibad ibia ibid ibyi idad idda idia idid iida iiii iipa ipad ipba ipdi ipid ippa ippy iyai paap paba pada padd padi pady paia paib paid paip papa papb papi papp papy pay- paya payb payp pbpa pdpa piai pibb pibi pida piia piip pipa pipi pipp pipy piya ppad ppap ppib ppid pppa pppd pppp pyay pypy yaba yada yaid yapa yapp yaya ydad yday yida yidi yyyy