-al a-a a-b aaa aab aad aae aag aal aam aan ab- aba abb abd abe abg abl abm abn ad- ada adb add ade adg adl adm adn aea aeb aed aee aeg ael aem aen ag- aga agb agd age agg agl agm agn al- ala alb ald ale alg all alm aln ama amb amd ame amg aml amm amn an- ana anb and ane ang anl anm ann baa bab bad bae bag bal bam ban bba bbb bbd bbe bbg bbl bbm bbn bda bdb bdd bde bdg bdl bdm be- bea beb bed bee beg bel bem ben bga bgb bgd bge bgg bgl bgm bgn bla blb bld ble blg bll blm bln bma bmb bmd bme bmg bml bmm bmn bna bnb bnd bne bng bnl bnn daa dab dad dae dag dal dam dan dba dbb dbd dbe dbg dbl dbm dbn dda ddb ddd dde ddg ddl ddm ddn de- dea deb ded dee deg del dem den dga dgd dge dgg dgl dgm dgn dl- dla dlb dld dle dlg dll dlm dma dmb dmd dme dmg dml dmm dmn dna dnb dnd dne dng dnl dnm dnn eaa eab ead eae eag eal eam ean eba ebb ebd ebe ebg ebl ebm ebn ed- eda edb edd ede edg edl edm edn eea eeb eed eee eeg eel eem een ega egb egd ege egg egl egm egn ela elb eld ele elg ell elm eln em- ema emb emd eme emg eml emm emn en- ena enb end ene eng enl enm enn g-d gaa gab gad gae gag gal gam gan gba gbd gbe gbg gbl gbm gbn gda gdb gdd gde gdl gdm gdn ge- gea geb ged gee geg gel gem gen gga ggb ggd ggg ggm ggn gla glb gld gle glg gll glm gln gma gmb gmd gme gmg gml gmm gmn gna gnb gnd gne gnl gnm gnn la- laa lab lad lae lag lal lam lan lba lbb lbd lbe lbg lbl lbm lda ldb ldd lde ldg ldl ldm ldn lea leb led lee leg lel lem len lga lgb lgd lge lgg lgl lgm lgn lla llb lld lle llg lll llm lln lma lmb lmd lme lmg lml lmm lmn lna lnb lnd lne lng lnl lnm lnn maa mab mad mae mag mal mam man mba mbb mbd mbe mbg mbl mbm mda mdb mdd mde mdg mdl mdm mdn mea meb med mee meg mel mem men mga mgb mgd mge mgl mgm mgn mla mlb mld mle mlg mll mlm mln mma mmb mmd mme mmg mml mmm mmn mna mnb mne mng mnl mnm mnn naa nab nad nae nag nal nam nan nba nbb nbd nbe nbg nbl nbm nbn nda ndb ndd nde ndg ndl ndm ndn ne- nea neb ned nee neg nel nem nen nga ngb ngd nge ngg ngl ngm ngn nla nlb nld nle nlg nll nlm nln nma nmb nmd nme nmg nml nmm nmn nna nnb nne nng nnl nnm nnn