-al a-a a-b a-t aaa aab aak aal aat ab- aba abb abk abl abt aka akb akk akl al- ala alb alk all alt at- ata atb atl att baa bab bak bal bat bba bbb bbk bbl bbt bka bkb bkk bkl bkt bla blb blk bll blt bta btb btk btl btt k-t ka- kaa kab kak kal kat kba kbb kbk kbl kkb kkk kkl kkt kl- kla klb klt kta ktb ktk ktl ktt la- laa lab lak lal lat lba lbb lbk lbl lbt lka lkb lkl lkt lla llb llk lll llt lta ltb ltk ltl ltt taa tab tak tal tat tba tbb tbk tbl tbt tka tkb tkk tkl tkt tla tlk tll tlt tta ttb ttk ttl ttt