a-ya aaaa aaab aaac aaal aaba aabb aabc aabl aaby aaca aacb aacc aacl aacy aala aalc aall abaa abab abac abal abay abb- abba abbb abby abca abcb abcc abcl abla ably abyc abyy acaa acab acac acba acbl acca accc accy acla aclc acyl alaa alac alal alay alb- alba albc alby alca alcc all- alla alll ally alya ayal ayay ayca ayla ayya baaa baal baba babb baby bac- baca bacc bala balc ball baly baya bayl bbay bbbb bblb bcaa bcbc bcca bccc bccl blaa blab blac blay bly- byla caaa caab caac caal caba caby cac- caca cacc cala calc call cbac cbal cbbc cbca cbcc cbcl cblb cblc ccaa ccab ccac ccba ccbc ccca cccb cccc cccl ccla cclc clab clay cly- cya- cyaa cyba cybb cybc cyc- cyca cycb cycc cycl cyl- cylc cyll cyy- cyyc laaa laac laal laba laby laca lacc lacl lacy lala lall laya lbcc lcac lcbc lcca lccc llay llcc lllc llll lyc- lyla lyly yaba yacc yacy yala yall yaya ycab yccc ylay ylla yyyy