-er -ic a-a a-c a-i aaa aac aae aaf aai aam aap aar aas ac- aca acc ace acf aci acm acp acr acs aea aec aee aef aei aem aep aer aes af- afa afc afe aff afi afm afp afr afs ai- aia aic aie aif aii aim aip air ais ama amc ame amf ami amm amp amr ams ap- apa apc ape apf api apm app apr aps ar- ara arc are arf ari arm arp arr ars as- asa asc ase asf asi asm asp asr ass c-- caa cac cae caf cai cam cap car cas cca ccc cce ccf cci ccm ccp ccr ccs ce- cea cec cee cef cei cem cep cer ces cfa cfc cfe cff cfi cfm cfp cfr cfs ci- cia cic cie cif cii cim cip cir cis cma cmc cme cmf cmi cmm cmp cmr cms cpa cpc cpe cpf cpi cpm cpp cpr cps cra crc cre crf cri crm crp crr crs csa csc cse csf csi csm csp csr css eaa eac eae eaf eai eam eap ear eas ec- eca ecc ece ecf eci ecm ecr ecs eea eec eee eef eem eep eer ees ef- efa efc efe eff efi efm efp efr efs eia eic eie eif eii eim eip eir eis em- ema emc eme emf emi emm emp emr ems ep- epa epc epe epf epi epm epp epr eps era erc ere erf eri erm erp err ers es- esa esc ese esf esi esm esp esr ess faa fac fae faf fai fam fap far fas fca fcc fce fcf fci fcm fcp fcr fcs fea fec fee fef fei fem fep fer fes ffa ffc ffe fff ffi ffm ffp ffr ffs fia fic fie fif fii fim fip fir fis fma fmc fme fmf fmi fmm fmp fmr fms fpa fpc fpe fpi fpm fpp fpr fps fra frc fre frf fri frm frp frr frs fsa fsc fse fsf fsi fsm fsp fsr fss i-f ia- iaa iac iae iaf iai iam iap iar ias ica icc ice icf ici icm icp icr ics ie- iea iec iee ief iei iem iep ier ies ifa ifc ife iff ifi ifm ifp ifr ifs iia iic iie iif iii iim iip iir iis im- ima imc ime imf imi imm imp ims ipa ipc ipe ipf ipi ipm ipp ipr ips ir- ira irc ire irf iri irm irp irr irs is- isa isc ise isf isi ism isp isr iss m-f m-r maa mac mae maf mai mam map mar mas mc- mca mcc mce mcf mci mcm mcp mcr mcs mea mec mee mef mei mem mep mer mes mfa mfc mfe mff mfi mfm mfp mfr mfs mi- mia mic mie mif mii mim mip mir mis mma mmc mme mmf mmi mmm mmp mmr mms mpa mpc mpe mpf mpi mpm mpp mpr mps mra mrc mre mrf mri mrm mrp mrr mrs msa msc mse msf msi msm msp msr mss p-p paa pac pae paf pai pam pap par pas pca pcc pce pcf pci pcm pcp pcr pcs pea pec pee pef pei pem pep per pes pfa pfc pfe pff pfi pfm pfp pfr pfs pia pic pie pif pii pim pip pir pis pma pmc pme pmf pmi pmm pmp pmr pms ppa ppc ppe ppf ppi ppm ppp ppr pps pra prc pre prf pri prm prp prr prs ps- psa psc pse psf psi psm psp psr pss ra- raa rac rae raf rai ram rap rar ras rca rcc rce rcf rci rcm rcp rcr rcs re- rea rec ree ref rei rem rep rer res rfa rfc rfe rff rfi rfm rfp rfr rfs ria ric rie rif rii rim rip rir ris rma rmc rme rmf rmi rmm rmp rmr rms rpa rpc rpe rpf rpi rpm rpp rpr rps rra rrc rrf rri rrm rrp rrr rrs rsa rsc rse rsf rsi rsm rsp rsr rss saa sac sae saf sai sam sap sar sas sca scc sce scf sci scm scp scr scs se- sea sec see sef sei sem sep ser ses sfa sfc sfe sff sfi sfm sfp sfr sfs sia sic sie sif sii sim sip sir sis sma smc sme smf smi smm smp smr sms spa spc spe spf spi spm spp spr sps sr- sra src sre srf sri srm srp srr srs ss- ssa ssc sse ssf ssi ssm ssp ssr sss