a-ii a-ya aaaa aaab aaai aaap aaba aabb aabi aabp aabt aaby aaib aaii aapa aapi aapt aata aatt abaa abab abai abap abat abay abb- abba abbb abbi abbt abby abia abib abit abiy abpa abpi abpp abta abyt abyy aiai aiba aiia aiib aipa aipi aipy aita aiti aitt apai apap apat apay apba api- apia apip apit appa appt appy apta apti aptt at-t ataa atab atai atap atat atay atia atip atit atta atti attp atty atya ayat ayay aypt ayta ayya ba-i baaa baat baba babb babi baby baia baib bait bapa bapi bapp bapt bata bati batt baty baya bayi bayt bbay bbbb biap biat biba bibb bibi bipa bipp bita bitt biya bpai bpay bpti btaa btbp bttb byit i-by iaaa iaai iaap iaat iaba iaia iapa iapp iapt iata iati ibat ibia ibtb ibyi iiii iiit iipa iita iitt ipat ipba ippa ippy ipta itaa itai itap itat itay itby itia itpa itta itty iyai iypt paap paat paba pabt paia paib paip pait papa papb papi papp papy pata pati patt paty pay- paya payb payp payt pbpa piai piat pibb pibi piia piip pipa pipi pipp pipy pita piti pitt pity piya ppap ppib pppa pppp ppta pptt ptab pyat pyay pypy pytt taa- taat taba tabb tabi taby taia taip tait tapa tapi tapp tapt tata tatb tati tatt taty taya tayt tayy tbit tbta tbtp tiaa tiab tiba tibi tiit tip- tipa tipi tipp tipt tita titi titp titt tiya tiyi tpap tpia tppa tppp tptp ttab ttbb tttt tybi typ- typp typy tyta tyti tytt tyty yaba yait yapa yapp yata yati yaya yiti yitp ytay yyyy