-al a-a a-b aaa aab aal aam aan ab- aba abb abl abm abn al- ala alb all alm aln ama amb aml amm amn an- ana anb anl anm ann baa bab bal bam ban bba bbb bbl bbm bbn bla blb bll blm bln bma bmb bml bmm bmn bna bnb bnl bnn la- laa lab lal lam lan lba lbb lbl lbm lla llb lll llm lln lma lmb lml lmm lmn lna lnb lnl lnm lnn maa mab mal mam man mba mbb mbl mbm mla mlb mll mlm mln mma mmb mml mmm mmn mna mnb mnl mnm mnn naa nab nal nam nan nba nbb nbl nbm nbn nla nlb nll nlm nln nma nmb nml nmm nmn nna nnb nnl nnm nnn