-al a-a a-b aaa aab aag aal aan aas ab- aba abb abg abl abn abs ag- aga agb agg agl agn ags al- ala alb alg all aln als an- ana anb ang anl ann ans as- asa asb asg asl asn ass baa bab bag bal ban bas bba bbb bbg bbl bbn bbs bga bgb bgg bgl bgn bgs bla blb blg bll bln bls bna bnb bng bnl bnn bns bsa bsb bsg bsl bsn bss gaa gab gag gal gan gas gba gbg gbl gbn gbs gga ggb ggg ggn ggs gla glb glg gll gln gls gna gnb gnl gnn gns gsa gsb gsg gsl gsn gss la- laa lab lag lal lan las lba lbb lbg lbl lbs lga lgb lgg lgl lgn lgs lla llb llg lll lln lls lna lnb lng lnl lnn lns lsa lsb lsg lsl lsn lss naa nab nag nal nan nas nba nbb nbg nbl nbn nbs nga ngb ngg ngl ngn ngs nla nlb nlg nll nln nls nna nnb nng nnl nnn nns nsa nsb nsg nsl nsn nss saa sab sag sal san sas sba sbb sbg sbl sbn sbs sga sgb sgg sgl sgn sgs sla slb slg sll sln sls sna snb sng snl snn sns ss- ssa ssb ssg ssl ssn sss