-al -er -ic a-a a-c a-i aaa aac aae aag aai aal aap aar ac- aca acc ace acg aci acl acp acr aea aec aee aeg aei ael aep aer ag- aga agc age agg agi agl agp agr ai- aia aic aie aig aii ail aip air al- ala alc ale alg ali all alp alr ap- apa apc ape apg api apl app apr ar- ara arc are arg ari arl arp arr c-- caa cac cae cag cai cal cap car cca ccc cce ccg cci ccl ccp ccr ce- cea cec cee ceg cei cel cep cer cga cgc cge cgg cgi cgl cgp cgr ci- cia cic cie cig cii cil cip cir cl- cla clc cle clg cli cll clp clr cpa cpc cpe cpg cpi cpl cpp cpr cra crc cre crg cri crl crp crr eaa eac eae eag eai eal eap ear ec- eca ecc ece ecg eci ecl ecr eea eec eee eeg eel eep eer ega egc ege egg egi egl egp egr eia eic eie eig eii eil eip eir ela elc ele elg eli ell elp elr ep- epa epc epe epg epi epl epp epr era erc ere erg eri erl erp err g-p gaa gac gae gag gai gal gap gar gca gcc gce gcg gci gcl gcp gcr ge- gea gec gee geg gei gel gep ger gga ggc ggg ggi ggp ggr gia gic gie gig gii gil gip gir gla glc gle glg gli gll glp glr gpa gpc gpe gpg gpi gpl gpp gpr gra grc gre grg gri grl grp grr ia- iaa iac iae iag iai ial iap iar ica icc ice icg ici icl icp icr ie- iea iec iee ieg iei iel iep ier iga igc ige igg igi igl igp igr iia iic iie iii iil iip iir il- ila ilc ile ilg ili ill ilp ilr ipa ipc ipe ipg ipi ipl ipp ipr ir- ira irc ire irg iri irl irp irr l-p la- laa lac lae lag lai lal lap lar lca lcc lce lcg lci lcl lcp lcr lea lec lee leg lei lel lep ler lga lgc lge lgg lgi lgl lgp lgr lia lic lie lig lii lil lip lir lla llc lle llg lli lll llp llr lpa lpc lpe lpg lpi lpl lpp lpr lra lrc lrg lri lrp lrr p-p paa pac pae pag pai pal pap par pca pcc pce pcg pci pcl pcp pcr pea pec pee peg pei pel pep per pga pgc pge pgg pgi pgl pgp pgr pia pic pie pig pii pil pip pir pla plc ple plg pli pll plp plr ppa ppc ppe ppg ppi ppl ppp ppr pra prc pre prg pri prl prp prr ra- raa rac rae rag rai ral rap rar rca rcc rce rcg rci rcl rcp rcr re- rea rec ree reg rei rel rep rer rga rgc rge rgg rgi rgp rgr ria ric rie rig rii ril rip rir rla rlc rle rlg rli rll rlp rlr rpa rpc rpe rpg rpi rpl rpp rpr rra rrc rrg rri rrl rrp rrr