-al -ly a-a a-b a-c aaa aab aac aal aay ab- aba abb abc abl aby ac- aca acb acc acl acy al- ala alb alc all aly ay- aya ayc ayl baa bab bac bal bay bba bbb bbc bbl bby bca bcb bcc bcl bcy bla blb blc bll bly by- bya byc byl c-- caa cab cac cal cay cba cbb cbc cbl cby cca ccb ccc ccl cl- cla clb clc cll cly cya cyb cyc cyl la- laa lab lac lal lay lba lbb lbc lbl lca lcb lcc lcl lcy lla llb llc lll lly lya lyc lyl yaa yab yac yal yay ybc ybl yby yca ycc ycl ycy ylc yll yly yyb yyc yyy