-al a-a a-b aaa aab aad aae aag aal aan ab- aba abb abd abe abg abl abn ad- ada adb add ade adg adl adn aea aeb aed aee aeg ael aen ag- aga agb agd age agg agl agn al- ala alb ald ale alg all aln an- ana anb and ane ang anl ann baa bab bad bae bag bal ban bba bbb bbd bbe bbg bbl bbn bda bdb bdd bde bdg bdl be- bea beb bed bee beg bel ben bga bgb bgd bge bgg bgl bgn bla blb bld ble blg bll bln bna bnb bnd bne bng bnl bnn daa dab dad dae dag dal dan dba dbb dbd dbe dbg dbl dbn dda ddb ddd dde ddg ddl ddn de- dea deb ded dee deg del den dga dgd dge dgg dgl dgn dl- dla dlb dld dle dlg dll dna dnb dnd dne dng dnl dnn eaa eab ead eae eag eal ean eba ebb ebd ebe ebg ebl ebn ed- eda edb edd ede edg edl edn eea eeb eed eee eeg eel een ega egb egd ege egg egl egn ela elb eld ele elg ell eln en- ena enb end ene eng enl enn g-d gaa gab gad gae gag gal gan gba gbd gbe gbg gbl gbn gda gdb gdd gde gdl gdn ge- gea geb ged gee geg gel gen gga ggb ggd ggg ggn gla glb gld gle glg gll gln gna gnb gnd gne gnl gnn la- laa lab lad lae lag lal lan lba lbb lbd lbe lbg lbl lda ldb ldd lde ldg ldl ldn lea leb led lee leg lel len lga lgb lgd lge lgg lgl lgn lla llb lld lle llg lll lln lna lnb lnd lne lng lnl lnn naa nab nad nae nag nal nan nba nbb nbd nbe nbg nbl nbn nda ndb ndd nde ndg ndl ndn ne- nea neb ned nee neg nel nen nga ngb ngd nge ngg ngl ngn nla nlb nld nle nlg nll nln nna nnb nne nng nnl nnn