bbb bbe bbg bbk bbl bbn be- beb bee beg bek bel ben bgb bge bgg bgk bgl bgn bkb bke bkg bkk bkl bkn blb ble blg blk bll bln bnb bne bng bnk bnl bnn ebb ebe ebg ebk ebl ebn eeb eee eeg eek eel een egb ege egg egl egn ekb eke ekg ekl elb ele elg elk ell eln en- enb ene eng enk enl enn gbe gbg gbk gbl gbn ge- geb gee geg gek gel gen ggb ggg ggn gkb gkn glb gle glg glk gll gln gnb gne gnl gnn kbb kbe kbk kbl kbn ke- keb kee keg kek kel ken kgb kgl kkb kke kkk kkl kkn kl- klb klg kn- kne kng knk knl knn lbb lbe lbg lbk lbl leb lee leg lek lel len lgb lge lgg lgk lgl lgn lkb lkg lkl llb lle llg llk lll lln lnb lne lng lnk lnl lnn nbb nbe nbg nbk nbl nbn ne- neb nee neg nek nel nen ngb nge ngg ngk ngl ngn nke nkk nkn nlb nle nlg nlk nll nln nnb nne nng nnk nnl nnn