bbb bbe bbg bbl bbn bbt be- beb bee beg bel ben bet bgb bge bgg bgl bgn bgt blb ble blg bll bln blt bnb bne bng bnl bnn bnt btb bte btg btl btn btt ebb ebe ebg ebl ebn ebt eeb eee eeg eel een eet egb ege egg egl egn egt elb ele elg ell eln elt en- enb ene eng enl enn ent etb ete etg etl etn ett gbe gbg gbl gbn gbt ge- geb gee geg gel gen get ggb ggg ggn ggt glb gle glg gll gln glt gnb gne gnl gnn gnt gtb gte gtg gtl gtn gtt lbb lbe lbg lbl lbt leb lee leg lel len let lgb lge lgg lgl lgn lgt llb lle llg lll lln llt lnb lne lng lnl lnn lnt ltb lte ltg ltl ltt nbb nbe nbg nbl nbn nbt ne- neb nee neg nel nen net ngb nge ngg ngl ngn ngt nlb nle nlg nll nln nlt nnb nne nng nnl nnn nnt ntb nte ntg ntn ntt tbb tbe tbg tbl tbn tbt te- teb tee teg tel ten tet tgb tge tgg tgl tgn tgt tle tlg tll tln tlt tnb tne tng tnl tnn tnt ttb tte ttg ttl ttn ttt