-al a-a a-b aaa aab aae aag aal aam ab- aba abb abe abg abl abm aea aeb aee aeg ael aem ag- aga agb age agg agl agm al- ala alb ale alg all alm ama amb ame amg aml amm baa bab bae bag bal bam bba bbb bbe bbg bbl bbm be- bea beb bee beg bel bem bga bgb bge bgg bgl bgm bla blb ble blg bll blm bma bmb bme bmg bml bmm eaa eab eae eag eal eam eba ebb ebe ebg ebl ebm eea eeb eee eeg eel eem ega egb ege egg egl egm ela elb ele elg ell elm em- ema emb eme emg eml emm gaa gab gae gag gal gam gba gbe gbg gbl gbm ge- gea geb gee geg gel gem gga ggb ggg ggm gla glb gle glg gll glm gma gmb gme gmg gml gmm la- laa lab lae lag lal lam lba lbb lbe lbg lbl lbm lea leb lee leg lel lem lga lgb lge lgg lgl lgm lla llb lle llg lll llm lma lmb lme lmg lml lmm maa mab mae mag mal mam mba mbb mbe mbg mbl mbm mea meb mee meg mel mem mga mgb mge mgl mgm mla mlb mle mlg mll mlm mma mmb mme mmg mml mmm