a-ya aaaa aaab aaac aaal aaba aabb aabc aabl aabt aaby aaca aacb aacc aacl aact aacy aala aalc aall aata aatc aatt abaa abab abac abal abat abay abb- abba abbb abbt abby abca abcb abcc abcl abct abla ably abta abyc abyt abyy ac-t acaa acab acac acat acba acbl acca accc acct accy acla aclc acta actc actl actt acyl alaa alac alal alat alay alb- alba albc alby alca alcc all- alla alll ally alta alya at-l at-t ataa atab atac atal atat atay atca atcc atcl atla atta atty atya atyl ayal ayat ayay ayca ayla ayta ayya baaa baal baat baba babb baby bac- baca bacc bact bala balc ball balt baly bata batc batt baty baya bayl bayt bbay bbbb bblb bcaa bcat bcbc bcca bccc bccl bctc blaa blab blac blat blay blbt bly- btaa btcc btcl btla bttb byla bylt caaa caab caac caal caat caba caby cac- caca cacc cala calc call calt cat- cata catb catc catt caty cbac cbal cbat cbbc cbca cbcc cbcl cbct cblb cblc cbta cbtc cbtl cbyt ccaa ccab ccac ccat ccba ccbc ccca cccb cccc cccl ccla cclc cctb cctc cctl cctt clab clat clay cltb cltc cly- ctab ctal ctba ctca ctta cya- cyaa cyba cybb cybc cyc- cyca cycb cycc cycl cyl- cylc cyll cyt- cyta cytb cyy- cyyc laaa laac laal laat laba laby laca lacc lacl lact lacy lala lall lata latc latt laya layt lbcc lcac lcat lcbc lcca lccc lctl llat llay llcc lllc llll ltac ltbl ltcc lttc lyc- lyla lyly lytt taa- taal taat taba tabb tabc tabl taby taca tacc tacl tact tacy tala talc tall tata tatb tatt taty taya tayl tayt tayy tbca tbcb tbcc tbta tcby tcca tccc tctc tlac tlya ttab ttbb tttt ttyl tyal tyl- tyla tyll tyta tytt tyty yaba yacc yacy yala yall yalt yata yaya ycab ycat yccc yctc ylat ylay ylla ytay yyyy