-er a-a a-c aaa aac aae aaf aam aap aar aas ac- aca acc ace acf acm acp acr acs aea aec aee aef aem aep aer aes af- afa afc afe aff afm afp afr afs ama amc ame amf amm amp amr ams ap- apa apc ape apf apm app apr aps ar- ara arc are arf arm arp arr ars as- asa asc ase asf asm asp asr ass c-- caa cac cae caf cam cap car cas cca ccc cce ccf ccm ccp ccr ccs ce- cea cec cee cef cem cep cer ces cfa cfc cfe cff cfm cfp cfr cfs cma cmc cme cmf cmm cmp cmr cms cpa cpc cpe cpf cpm cpp cpr cps cra crc cre crf crm crp crr crs csa csc cse csf csm csp csr css eaa eac eae eaf eam eap ear eas ec- eca ecc ece ecf ecm ecr ecs eea eec eee eef eem eep eer ees ef- efa efc efe eff efm efp efr efs em- ema emc eme emf emm emp emr ems ep- epa epc epe epf epm epp epr eps era erc ere erf erm erp err ers es- esa esc ese esf esm esp esr ess faa fac fae faf fam fap far fas fca fcc fce fcf fcm fcp fcr fcs fea fec fee fef fem fep fer fes ffa ffc ffe fff ffm ffp ffr ffs fma fmc fme fmf fmm fmp fmr fms fpa fpc fpe fpm fpp fpr fps fra frc fre frf frm frp frr frs fsa fsc fse fsf fsm fsp fsr fss m-f m-r maa mac mae maf mam map mar mas mc- mca mcc mce mcf mcm mcp mcr mcs mea mec mee mef mem mep mer mes mfa mfc mfe mff mfm mfp mfr mfs mma mmc mme mmf mmm mmp mmr mms mpa mpc mpe mpf mpm mpp mpr mps mra mrc mre mrf mrm mrp mrr mrs msa msc mse msf msm msp msr mss p-p paa pac pae paf pam pap par pas pca pcc pce pcf pcm pcp pcr pcs pea pec pee pef pem pep per pes pfa pfc pfe pff pfm pfp pfr pfs pma pmc pme pmf pmm pmp pmr pms ppa ppc ppe ppf ppm ppp ppr pps pra prc pre prf prm prp prr prs ps- psa psc pse psf psm psp psr pss ra- raa rac rae raf ram rap rar ras rca rcc rce rcf rcm rcp rcr rcs re- rea rec ree ref rem rep rer res rfa rfc rfe rff rfm rfp rfr rfs rma rmc rme rmf rmm rmp rmr rms rpa rpc rpe rpf rpm rpp rpr rps rra rrc rrf rrm rrp rrr rrs rsa rsc rse rsf rsm rsp rsr rss saa sac sae saf sam sap sar sas sca scc sce scf scm scp scr scs se- sea sec see sef sem sep ser ses sfa sfc sfe sff sfm sfp sfr sfs sma smc sme smf smm smp smr sms spa spc spe spf spm spp spr sps sr- sra src sre srf srm srp srr srs ss- ssa ssc sse ssf ssm ssp ssr sss