-al a-a a-b a-t a-z aaa aab aal aan aat aaz ab- aba abb abl abn abt abz al- ala alb all aln alt alz an- ana anb anl ann ant anz at- ata atb atl atn att atz az- aza azb azn azt azz baa bab bal ban bat baz bba bbb bbl bbn bbt bla blb bll bln blt blz bna bnb bnl bnn bnt bnz bta btb btl btn btt btz bza bzn bzz la- laa lab lal lan lat laz lba lbb lbl lbt lla llb lll lln llt llz lna lnb lnl lnn lnt lta ltb ltl ltt ltz naa nab nal nan nat naz nba nbb nbl nbn nbt nla nlb nll nln nlt nlz nna nnb nnl nnn nnt nnz nta ntb ntn ntt ntz nzb nzz taa tab tal tan tat taz tba tbb tbl tbn tbt tbz tla tll tln tlt tlz tna tnb tnl tnn tnt tnz tta ttb ttl ttn ttt tza zaa zab zan zat zaz zbb zbl zbt zla zlt znn zta ztl zzt zzz