-al -ol a-a a-c aaa aac aag aal aao aar aas ac- aca acc acg acl aco acr acs ag- aga agc agg agl ago agr ags al- ala alc alg all alo alr als aoa aoc aog aol aoo aor aos ar- ara arc arg arl aro arr ars as- asa asc asg asl aso asr ass c-- caa cac cag cal cao car cas cca ccc ccg ccl cco ccr ccs cga cgc cgg cgl cgo cgr cgs cl- cla clc clg cll clo clr cls co- coa coc cog col coo cor cos cra crc crg crl cro crr crs csa csc csg csl cso csr css gaa gac gag gal gao gar gas gca gcc gcg gcl gco gcr gcs gga ggc ggg ggo ggr ggs gla glc glg gll glo glr gls goa goc gog gol goo gor gos gra grc grg grl gro grr grs gsa gsc gsg gsl gso gsr gss la- laa lac lag lal lao lar las lca lcc lcg lcl lco lcr lcs lga lgc lgg lgl lgo lgr lgs lla llc llg lll llo llr lls loa loc log lol loo lor los lra lrc lrg lro lrr lrs lsa lsc lsg lsl lso lsr lss oaa oac oag oal oao oar oas oc- oca occ ocg ocl oco ocr ocs oga ogc ogg ogl ogo ogs ola olc olg oll olo ols oo- ooa ooc oog ool ooo oor oos or- ora orc org orl oro orr ors os- osa osc osg osl oso osr oss ra- raa rac rag ral rao rar ras rca rcc rcg rcl rco rcr rcs rga rgc rgg rgo rgr rgs rla rlc rlg rll rlo rlr rls roa roc rog rol roo ror ros rra rrc rrg rrl rrr rrs rsa rsc rsg rsl rso rsr rss saa sac sag sal sao sar sas sca scc scg scl sco scr scs sga sgc sgg sgl sgo sgr sgs sla slc slg sll slo slr sls soa soc sog sol soo sor sos sr- sra src srg srl sro srr srs ss- ssa ssc ssg ssl sso ssr sss