-al -ly a-a a-b a-c aaa aab aac aaf aal aan aay ab- aba abb abc abf abl abn aby ac- aca acb acc acf acl acn acy af- afa afb afc aff afl afn afy al- ala alb alc alf all aln aly an- ana anb anc anf anl ann any ay- aya ayc ayf ayl ayn baa bab bac baf bal ban bay bba bbb bbc bbf bbl bbn bby bca bcb bcc bcf bcl bcn bcy bfa bfb bfc bff bfl bfn bfy bla blb blc blf bll bln bly bna bnb bnc bnf bnl bnn by- bya byc byf byl byn c-- caa cab cac caf cal can cay cba cbb cbc cbf cbl cbn cby cca ccb ccc ccf ccl ccn cfa cfb cfc cff cfl cfn cl- cla clb clc clf cll cln cly cn- cna cnb cnc cnf cnl cnn cny cya cyb cyc cyf cyl cyn faa fab fac faf fal fan fay fba fbb fbc fbf fbl fbn fca fcb fcc fcf fcl fcn fcy ffa ffc fff ffl ffn ffy fla flb flc flf fll fln fly fna fnb fnc fnf fnl fnn fy- fya fyb fyc fyn la- laa lab lac laf lal lan lay lba lbb lbc lbf lbl lca lcb lcc lcf lcl lcn lcy lfa lfb lfc lff lfl lfn lla llb llc llf lll lln lly lna lnb lnc lnl lnn lya lyc lyf lyl lyn naa nab nac naf nal nan nay nba nbb nbc nbf nbl nbn nca ncb ncc ncf ncl ncn nfa nfb nfc nff nfl nfn nla nlb nlc nlf nll nln nly nna nnb nnc nnf nnl nnn nya nyc nyf nyl nyn nyy yaa yab yac yaf yal yan yay ybc ybf ybl yby yca ycc ycf ycl ycy yfa yfc yff ylc yll yly yna ynn yny yyb yyc yyf yyy