-al a-a a-b aaa aab aae aag aal aam aan ab- aba abb abe abg abl abm abn aea aeb aee aeg ael aem aen ag- aga agb age agg agl agm agn al- ala alb ale alg all alm aln ama amb ame amg aml amm amn an- ana anb ane ang anl anm ann baa bab bae bag bal bam ban bba bbb bbe bbg bbl bbm bbn be- bea beb bee beg bel bem ben bga bgb bge bgg bgl bgm bgn bla blb ble blg bll blm bln bma bmb bme bmg bml bmm bmn bna bnb bne bng bnl bnn eaa eab eae eag eal eam ean eba ebb ebe ebg ebl ebm ebn eea eeb eee eeg eel eem een ega egb ege egg egl egm egn ela elb ele elg ell elm eln em- ema emb eme emg eml emm emn en- ena enb ene eng enl enm enn gaa gab gae gag gal gam gan gba gbe gbg gbl gbm gbn ge- gea geb gee geg gel gem gen gga ggb ggg ggm ggn gla glb gle glg gll glm gln gma gmb gme gmg gml gmm gmn gna gnb gne gnl gnm gnn la- laa lab lae lag lal lam lan lba lbb lbe lbg lbl lbm lea leb lee leg lel lem len lga lgb lge lgg lgl lgm lgn lla llb lle llg lll llm lln lma lmb lme lmg lml lmm lmn lna lnb lne lng lnl lnm lnn maa mab mae mag mal mam man mba mbb mbe mbg mbl mbm mea meb mee meg mel mem men mga mgb mge mgl mgm mgn mla mlb mle mlg mll mlm mln mma mmb mme mmg mml mmm mmn mna mnb mne mng mnl mnm mnn naa nab nae nag nal nam nan nba nbb nbe nbg nbl nbm nbn ne- nea neb nee neg nel nem nen nga ngb nge ngg ngl ngm ngn nla nlb nle nlg nll nlm nln nma nmb nme nmg nml nmm nmn nna nnb nne nng nnl nnm nnn