-al a-a a-c aaa aac aag aal aan aar aas ac- aca acc acg acl acn acr acs ag- aga agc agg agl agn agr ags al- ala alc alg all aln alr als an- ana anc ang anl ann anr ans ar- ara arc arg arl arn arr ars as- asa asc asg asl asn asr ass c-- caa cac cag cal can car cas cca ccc ccg ccl ccn ccr ccs cga cgc cgg cgl cgn cgr cgs cl- cla clc clg cll cln clr cls cn- cna cnc cng cnl cnn cnr cns cra crc crg crl crn crr crs csa csc csg csl csn csr css gaa gac gag gal gan gar gas gca gcc gcg gcl gcn gcr gcs gga ggc ggg ggn ggr ggs gla glc glg gll gln glr gls gna gnc gnl gnn gnr gns gra grc grg grl grn grr grs gsa gsc gsg gsl gsn gsr gss la- laa lac lag lal lan lar las lca lcc lcg lcl lcn lcr lcs lga lgc lgg lgl lgn lgr lgs lla llc llg lll lln llr lls lna lnc lng lnl lnn lnr lns lra lrc lrg lrn lrr lrs lsa lsc lsg lsl lsn lsr lss naa nac nag nal nan nar nas nca ncc ncg ncl ncn ncr ncs nga ngc ngg ngl ngn ngs nla nlc nlg nll nln nlr nls nna nnc nng nnl nnn nns nra nrc nrg nrl nrn nrr nrs nsa nsc nsg nsl nsn nsr nss ra- raa rac rag ral ran rar ras rca rcc rcg rcl rcn rcr rcs rga rgc rgg rgn rgr rgs rla rlc rlg rll rln rlr rls rna rnc rng rnn rnr rns rra rrc rrg rrl rrn rrr rrs rsa rsc rsg rsl rsn rsr rss saa sac sag sal san sar sas sca scc scg scl scn scr scs sga sgc sgg sgl sgn sgr sgs sla slc slg sll sln slr sls sna snc sng snl snn snr sns sr- sra src srg srl srn srr srs ss- ssa ssc ssg ssl ssn ssr sss