-al a-a a-b aaa aab aag aak aal aan aas ab- aba abb abg abk abl abn abs ag- aga agb agg agk agl agn ags aka akb akg akk akl akn aks al- ala alb alg alk all aln als an- ana anb ang ank anl ann ans as- asa asb asg ask asl asn ass baa bab bag bak bal ban bas bba bbb bbg bbk bbl bbn bbs bga bgb bgg bgk bgl bgn bgs bka bkb bkg bkk bkl bkn bks bla blb blg blk bll bln bls bna bnb bng bnk bnl bnn bns bsa bsb bsg bsk bsl bsn bss gaa gab gag gak gal gan gas gba gbg gbk gbl gbn gbs gga ggb ggg ggn ggs gka gkb gkn gks gla glb glg glk gll gln gls gna gnb gnl gnn gns gsa gsb gsg gsk gsl gsn gss ka- kaa kab kag kak kal kan kas kba kbb kbk kbl kbn kbs kga kgb kgl kgs kkb kkk kkl kkn kks kl- kla klb klg kls kn- kna kng knk knl knn ksa ksb ksg ksk ksl ksn kss la- laa lab lag lak lal lan las lba lbb lbg lbk lbl lbs lga lgb lgg lgk lgl lgn lgs lka lkb lkg lkl lks lla llb llg llk lll lln lls lna lnb lng lnk lnl lnn lns lsa lsb lsg lsk lsl lsn lss naa nab nag nak nal nan nas nba nbb nbg nbk nbl nbn nbs nga ngb ngg ngk ngl ngn ngs nka nkk nkn nks nla nlb nlg nlk nll nln nls nna nnb nng nnk nnl nnn nns nsa nsb nsg nsk nsl nsn nss saa sab sag sak sal san sas sba sbb sbg sbk sbl sbn sbs sga sgb sgg sgk sgl sgn sgs sk- ska skb skg skk skl sks sla slb slg slk sll sln sls sna snb sng snk snl snn sns ss- ssa ssb ssg ssk ssl ssn sss