-al a-a a-b aaa aab aae aag aah aal aan ab- aba abb abe abg abh abl abn aea aeb aee aeg aeh ael aen ag- aga agb age agg agh agl agn aha ahb ahe ahg ahh ahl ahn al- ala alb ale alg alh all aln an- ana anb ane ang anh anl ann baa bab bae bag bah bal ban bba bbb bbe bbg bbh bbl bbn be- bea beb bee beg beh bel ben bga bgb bge bgg bgh bgl bgn bha bhb bhe bhg bhh bhl bla blb ble blg blh bll bln bna bnb bne bng bnl bnn eaa eab eae eag eah eal ean eba ebb ebe ebg ebh ebl ebn eea eeb eee eeg eel een ega egb ege egg egh egl egn eha ehb ehe ehg ehh ehl ehn ela elb ele elg elh ell eln en- ena enb ene eng enh enl enn gaa gab gae gag gah gal gan gba gbe gbg gbh gbl gbn ge- gea geb gee geg geh gel gen gga ggb ggg ggh ggn gha ghb ghe ghg ghh ghl ghn gla glb gle glg glh gll gln gna gnb gne gnl gnn haa hab hae hag hah hal han hba hbb hbe hbg hbh hbl hbn he- hea heb hee heg heh hel hen hga hgb hge hgg hgh hgl hgn hha hhb hhe hhg hhh hhl hhn hla hlb hle hlg hlh hll hln hna hnb hne hng hnh hnl hnn la- laa lab lae lag lah lal lan lba lbb lbe lbg lbh lbl lea leb lee leg leh lel len lga lgb lge lgg lgh lgl lgn lha lhb lhh lla llb lle llg lll lln lna lnb lne lng lnh lnl lnn naa nab nae nag nah nal nan nba nbb nbe nbg nbl nbn ne- nea neb nee neg neh nel nen nga ngb nge ngg ngh ngl ngn nha nhb nhe nhg nhh nhl nhn nla nlb nle nlg nlh nll nln nna nnb nne nng nnh nnl nnn