-er -ic a-a a-c a-i aaa aac aae aag aai aam aap aar aas ac- aca acc ace acg aci acm acp acr acs aea aec aee aeg aei aem aep aer aes ag- aga agc age agg agi agm agp agr ags ai- aia aic aie aig aii aim aip air ais ama amc ame amg ami amm amp amr ams ap- apa apc ape apg api apm app apr aps ar- ara arc are arg ari arm arp arr ars as- asa asc ase asg asi asm asp asr ass c-- caa cac cae cag cai cam cap car cas cca ccc cce ccg cci ccm ccp ccr ccs ce- cea cec cee ceg cei cem cep cer ces cga cgc cge cgg cgi cgm cgp cgr cgs ci- cia cic cie cig cii cim cip cir cis cma cmc cme cmg cmi cmm cmp cmr cms cpa cpc cpe cpg cpi cpm cpp cpr cps cra crc cre crg cri crm crp crr crs csa csc cse csg csi csm csp csr css eaa eac eae eag eai eam eap ear eas ec- eca ecc ece ecg eci ecm ecr ecs eea eec eee eeg eem eep eer ees ega egc ege egg egi egm egp egr egs eia eic eie eig eii eim eip eir eis em- ema emc eme emg emi emm emp emr ems ep- epa epc epe epg epi epm epp epr eps era erc ere erg eri erm erp err ers es- esa esc ese esg esi esm esp esr ess g-p gaa gac gae gag gai gam gap gar gas gca gcc gce gcg gci gcm gcp gcr gcs ge- gea gec gee geg gei gem gep ger ges gga ggc ggg ggi ggm ggp ggr ggs gia gic gie gig gii gim gip gir gis gma gmc gme gmg gmi gmm gmp gmr gms gpa gpc gpe gpg gpi gpm gpp gpr gps gra grc gre grg gri grm grp grr grs gsa gsc gse gsg gsi gsm gsp gsr gss ia- iaa iac iae iag iai iam iap iar ias ica icc ice icg ici icm icp icr ics ie- iea iec iee ieg iei iem iep ier ies iga igc ige igg igi igm igp igr igs iia iic iie iii iim iip iir iis im- ima imc ime img imi imm imp ims ipa ipc ipe ipg ipi ipm ipp ipr ips ir- ira irc ire irg iri irm irp irr irs is- isa isc ise isg isi ism isp isr iss m-r maa mac mae mag mai mam map mar mas mc- mca mcc mce mcg mci mcm mcp mcr mcs mea mec mee meg mei mem mep mer mes mga mgc mge mgi mgm mgp mgr mgs mi- mia mic mie mig mii mim mip mir mis mma mmc mme mmg mmi mmm mmp mmr mms mpa mpc mpe mpg mpi mpm mpp mpr mps mra mrc mre mrg mri mrm mrp mrr mrs msa msc mse msg msi msm msp msr mss p-p paa pac pae pag pai pam pap par pas pca pcc pce pcg pci pcm pcp pcr pcs pea pec pee peg pei pem pep per pes pga pgc pge pgg pgi pgm pgp pgr pgs pia pic pie pig pii pim pip pir pis pma pmc pme pmg pmi pmm pmp pmr pms ppa ppc ppe ppg ppi ppm ppp ppr pps pra prc pre prg pri prm prp prr prs ps- psa psc pse psg psi psm psp psr pss ra- raa rac rae rag rai ram rap rar ras rca rcc rce rcg rci rcm rcp rcr rcs re- rea rec ree reg rei rem rep rer res rga rgc rge rgg rgi rgp rgr rgs ria ric rie rig rii rim rip rir ris rma rmc rme rmg rmi rmm rmp rmr rms rpa rpc rpe rpg rpi rpm rpp rpr rps rra rrc rrg rri rrm rrp rrr rrs rsa rsc rse rsg rsi rsm rsp rsr rss saa sac sae sag sai sam sap sar sas sca scc sce scg sci scm scp scr scs se- sea sec see seg sei sem sep ser ses sga sgc sge sgg sgi sgm sgp sgr sgs sia sic sie sig sii sim sip sir sis sma smc sme smg smi smm smp smr sms spa spc spe spg spi spm spp spr sps sr- sra src sre srg sri srm srp srr srs ss- ssa ssc sse ssg ssi ssm ssp ssr sss