-al a-a a-b a-t aaa aab aak aal aan aat ab- aba abb abk abl abn abt aka akb akk akl akn al- ala alb alk all aln alt an- ana anb ank anl ann ant at- ata atb atl atn att baa bab bak bal ban bat bba bbb bbk bbl bbn bbt bka bkb bkk bkl bkn bkt bla blb blk bll bln blt bna bnb bnk bnl bnn bnt bta btb btk btl btn btt k-t ka- kaa kab kak kal kan kat kba kbb kbk kbl kbn kkb kkk kkl kkn kkt kl- kla klb klt kn- kna knk knl knn knt kta ktb ktk ktl ktn ktt la- laa lab lak lal lan lat lba lbb lbk lbl lbt lka lkb lkl lkt lla llb llk lll lln llt lna lnb lnk lnl lnn lnt lta ltb ltk ltl ltt naa nab nak nal nan nat nba nbb nbk nbl nbn nbt nka nkk nkn nkt nla nlb nlk nll nln nlt nna nnb nnk nnl nnn nnt nta ntb ntk ntn ntt taa tab tak tal tan tat tba tbb tbk tbl tbn tbt tka tkb tkk tkl tkt tla tlk tll tln tlt tna tnb tnk tnl tnn tnt tta ttb ttk ttl ttn ttt