-al -ol a-a a-c aaa aac aag aak aal aao aar ac- aca acc acg ack acl aco acr ag- aga agc agg agk agl ago agr aka akc akg akk akl ako akr al- ala alc alg alk all alo alr aoa aoc aog aok aol aoo aor ar- ara arc arg ark arl aro arr c-- caa cac cag cak cal cao car cca ccc ccg cck ccl cco ccr cga cgc cgg cgl cgo cgr cka ckc cko cl- cla clc clg clk cll clo clr co- coa coc cog cok col coo cor cra crc crg crk crl cro crr gaa gac gag gak gal gao gar gca gcc gcg gck gcl gco gcr gga ggc ggg ggo ggr gka gko gla glc glg glk gll glo glr goa goc gog gok gol goo gor gra grc grg grk grl gro grr ka- kaa kac kag kak kal kao kar kca kcc kcg kck kcl kcr kga kgc kgl kgo kkc kkk kkl kkr kl- kla klc klg klo klr koa koc kog kok kol koo kor kra krc krg krk krl kro krr la- laa lac lag lak lal lao lar lca lcc lcg lck lcl lco lcr lga lgc lgg lgk lgl lgo lgr lka lkg lkl lkr lla llc llg llk lll llo llr loa loc log lok lol loo lor lra lrc lrg lrk lro lrr oaa oac oag oak oal oao oar oc- oca occ ocg ock ocl oco ocr oga ogc ogg ogl ogo oka okc okg okk okl oko okr ola olc olg olk oll olo oo- ooa ooc oog ook ool ooo oor or- ora orc org ork orl oro orr ra- raa rac rag rak ral rao rar rca rcc rcg rcl rco rcr rga rgc rgg rgk rgo rgr rkc rkg rkk rko rla rlc rlg rll rlo rlr roa roc rog rok rol roo ror rra rrc rrg rrk rrl rrr