-al -er a-a a-c aaa aac aae aag aal aar ac- aca acc ace acg acl acr aea aec aee aeg ael aer ag- aga agc age agg agl agr al- ala alc ale alg all alr ar- ara arc are arg arl arr c-- caa cac cae cag cal car cca ccc cce ccg ccl ccr ce- cea cec cee ceg cel cer cga cgc cge cgg cgl cgr cl- cla clc cle clg cll clr cra crc cre crg crl crr eaa eac eae eag eal ear ec- eca ecc ece ecg ecl ecr eea eec eee eeg eel eer ega egc ege egg egl egr ela elc ele elg ell elr era erc ere erg erl err gaa gac gae gag gal gar gca gcc gce gcg gcl gcr ge- gea gec gee geg gel ger gga ggc ggg ggr gla glc gle glg gll glr gra grc gre grg grl grr la- laa lac lae lag lal lar lca lcc lce lcg lcl lcr lea lec lee leg lel ler lga lgc lge lgg lgl lgr lla llc lle llg lll llr lra lrc lrg lrr ra- raa rac rae rag ral rar rca rcc rce rcg rcl rcr re- rea rec ree reg rel rer rga rgc rge rgg rgr rla rlc rle rlg rll rlr rra rrc rrg rrl rrr