-al a-a a-c a-t aaa aac aal aan aat ac- aca acc acl acn act al- ala alc all aln alt an- ana anc anl ann ant at- ata atc atl atn att c-- caa cac cal can cat cca ccc ccl ccn cct cl- cla clc cll cln clt cn- cna cnc cnl cnn cnt cta ctc ctl ctn ctt la- laa lac lal lan lat lca lcc lcl lcn lct lla llc lll lln llt lna lnc lnl lnn lnt lta ltc ltl ltt naa nac nal nan nat nca ncc ncl ncn nct nla nlc nll nln nlt nna nnc nnl nnn nnt nta ntc ntn ntt taa tac tal tan tat tca tcc tcl tcn tct tla tlc tll tln tlt tna tnc tnl tnn tnt tta ttc ttl ttn ttt