-al a-a a-c a-t aaa aac aae aal aan aat ac- aca acc ace acl acn act aea aec aee ael aen aet al- ala alc ale all aln alt an- ana anc ane anl ann ant at- ata atc ate atl atn att c-- caa cac cae cal can cat cca ccc cce ccl ccn cct ce- cea cec cee cel cen cet cl- cla clc cle cll cln clt cn- cna cnc cne cnl cnn cnt cta ctc cte ctl ctn ctt eaa eac eae eal ean eat ec- eca ecc ece ecl ecn ect eea eec eee eel een eet ela elc ele ell eln elt en- ena enc ene enl enn ent eta etc ete etl etn ett la- laa lac lae lal lan lat lca lcc lce lcl lcn lct lea lec lee lel len let lla llc lle lll lln llt lna lnc lne lnl lnn lnt lta ltc lte ltl ltt naa nac nae nal nan nat nca ncc nce ncl ncn nct ne- nea nec nee nel nen net nla nlc nle nll nln nlt nna nnc nne nnl nnn nnt nta ntc nte ntn ntt taa tac tae tal tan tat tca tcc tce tcl tcn tct te- tea tec tee tel ten tet tla tlc tle tll tln tlt tna tnc tne tnl tnn tnt tta ttc tte ttl ttn ttt