-al -ly a-a a-b a-c aaa aab aac aaf aak aal aay ab- aba abb abc abf abk abl aby ac- aca acb acc acf ack acl acy af- afa afb afc aff afk afl afy aka akb akc akk akl al- ala alb alc alf alk all aly ay- aya ayc ayf ayk ayl baa bab bac baf bak bal bay bba bbb bbc bbf bbk bbl bby bca bcb bcc bcf bck bcl bcy bfa bfb bfc bff bfl bfy bka bkb bkc bkf bkk bkl bla blb blc blf blk bll bly by- bya byc byf byk byl c-- caa cab cac caf cak cal cay cba cbb cbc cbf cbk cbl cby cca ccb ccc ccf cck ccl cfa cfb cfc cff cfk cfl cka ckb ckc cky cl- cla clb clc clf clk cll cly cya cyb cyc cyf cyk cyl faa fab fac faf fak fal fay fba fbb fbc fbf fbk fbl fca fcb fcc fcf fck fcl fcy ffa ffc fff ffk ffl ffy fka fkb fkc fkf fkk fkl fla flb flc flf fll fly fy- fya fyb fyc fyk ka- kaa kab kac kaf kak kal kay kba kbb kbc kbf kbk kbl kca kcb kcc kck kcl kfa kfc kff kkb kkc kkk kkl kky kl- kla klb klc klf kly kya kyc kyl la- laa lab lac laf lak lal lay lba lbb lbc lbf lbk lbl lca lcb lcc lcf lck lcl lcy lfa lfb lfc lff lfk lfl lka lkb lkl lky lla llb llc llf llk lll lly lya lyc lyf lyk lyl yaa yab yac yaf yak yal yay ybc ybf ybl yby yca ycc ycf ycl ycy yfa yfc yff yka ykk ylc ylk yll yly yyb yyc yyf yyy