-al -er a-a a-c aaa aac aae aag aal aap aar ac- aca acc ace acg acl acp acr aea aec aee aeg ael aep aer ag- aga agc age agg agl agp agr al- ala alc ale alg all alp alr ap- apa apc ape apg apl app apr ar- ara arc are arg arl arp arr c-- caa cac cae cag cal cap car cca ccc cce ccg ccl ccp ccr ce- cea cec cee ceg cel cep cer cga cgc cge cgg cgl cgp cgr cl- cla clc cle clg cll clp clr cpa cpc cpe cpg cpl cpp cpr cra crc cre crg crl crp crr eaa eac eae eag eal eap ear ec- eca ecc ece ecg ecl ecr eea eec eee eeg eel eep eer ega egc ege egg egl egp egr ela elc ele elg ell elp elr ep- epa epc epe epg epl epp epr era erc ere erg erl erp err g-p gaa gac gae gag gal gap gar gca gcc gce gcg gcl gcp gcr ge- gea gec gee geg gel gep ger gga ggc ggg ggp ggr gla glc gle glg gll glp glr gpa gpc gpe gpg gpl gpp gpr gra grc gre grg grl grp grr l-p la- laa lac lae lag lal lap lar lca lcc lce lcg lcl lcp lcr lea lec lee leg lel lep ler lga lgc lge lgg lgl lgp lgr lla llc lle llg lll llp llr lpa lpc lpe lpg lpl lpp lpr lra lrc lrg lrp lrr p-p paa pac pae pag pal pap par pca pcc pce pcg pcl pcp pcr pea pec pee peg pel pep per pga pgc pge pgg pgl pgp pgr pla plc ple plg pll plp plr ppa ppc ppe ppg ppl ppp ppr pra prc pre prg prl prp prr ra- raa rac rae rag ral rap rar rca rcc rce rcg rcl rcp rcr re- rea rec ree reg rel rep rer rga rgc rge rgg rgp rgr rla rlc rle rlg rll rlp rlr rpa rpc rpe rpg rpl rpp rpr rra rrc rrg rrl rrp rrr