a-ya a-yo aaaa aaab aaba aabb aabt aaby aaoo aata aatt abaa abab abaj abat abay abb- abba abbb abbo abbt abby aboa abob aboo abot aboy abta abyt abyy ajab ajao ajat ajay ajba ajob ajoo ajot ajoy aoba at-t ataa atab atat atay atob atot atoy atta atto atty atya ay-o ayao ayat ayay ayoo ayot ayta ayto ayya baaa baat baba babb babo baby baja bata bato batt baty baya bayo bayt bbay bbbb bboy bbyo bjoa boab boat boba bobb bobo boby bojo bojt boob boot bota botb boto bott boty boya boyo btaa btob bttb byoa byob jaba jabo jaja jato jaty jaya jbaa jbob joab joao joba jobo joby jojo joot jota joto jott joya joyo joyt oaty obay obba obbo obby obja obot oboy ojay ojoy ooaa ooba ooby oooo ootb ooty otay oto- otoo otoy otta otto taa- taat taba tabb tabo taby tajo taoa tata tatb tato tatt taty taya tayo tayt tayy tbta to-y toab toat toay toba tobo tobt toby toja tojo tooa toot tota toto tott toty toya toyb toyo toyt ttab ttbb ttoy tttt tybo tyta tyto tytt tyty yaba yabo yata yaya yayo yoba yobo yoot yota yott yoyo ytay yyyy