-al -er -ic a-a a-c a-i aaa aac aae aag aai aal aar ac- aca acc ace acg aci acl acr aea aec aee aeg aei ael aer ag- aga agc age agg agi agl agr ai- aia aic aie aig aii ail air al- ala alc ale alg ali all alr ar- ara arc are arg ari arl arr c-- caa cac cae cag cai cal car cca ccc cce ccg cci ccl ccr ce- cea cec cee ceg cei cel cer cga cgc cge cgg cgi cgl cgr ci- cia cic cie cig cii cil cir cl- cla clc cle clg cli cll clr cra crc cre crg cri crl crr eaa eac eae eag eai eal ear ec- eca ecc ece ecg eci ecl ecr eea eec eee eeg eel eer ega egc ege egg egi egl egr eia eic eie eig eii eil eir ela elc ele elg eli ell elr era erc ere erg eri erl err gaa gac gae gag gai gal gar gca gcc gce gcg gci gcl gcr ge- gea gec gee geg gei gel ger gga ggc ggg ggi ggr gia gic gie gig gii gil gir gla glc gle glg gli gll glr gra grc gre grg gri grl grr ia- iaa iac iae iag iai ial iar ica icc ice icg ici icl icr ie- iea iec iee ieg iei iel ier iga igc ige igg igi igl igr iia iic iie iii iil iir il- ila ilc ile ilg ili ill ilr ir- ira irc ire irg iri irl irr la- laa lac lae lag lai lal lar lca lcc lce lcg lci lcl lcr lea lec lee leg lei lel ler lga lgc lge lgg lgi lgl lgr lia lic lie lig lii lil lir lla llc lle llg lli lll llr lra lrc lrg lri lrr ra- raa rac rae rag rai ral rar rca rcc rce rcg rci rcl rcr re- rea rec ree reg rei rel rer rga rgc rge rgg rgi rgr ria ric rie rig rii ril rir rla rlc rle rlg rli rll rlr rra rrc rrg rri rrl rrr