-er -ic a-a a-c a-i aaa aac aae aaf aai aam aao aap aar aas ac- aca acc ace acf aci acm aco acp acr acs aea aec aee aef aei aem aeo aep aer aes af- afa afc afe aff afi afm afo afp afr afs ai- aia aic aie aif aii aim aio aip air ais ama amc ame amf ami amm amo amp amr ams aoa aoc aoe aof aoi aom aoo aop aor aos ap- apa apc ape apf api apm apo app apr aps ar- ara arc are arf ari arm aro arp arr ars as- asa asc ase asf asi asm aso asp asr ass c-- caa cac cae caf cai cam cao cap car cas cca ccc cce ccf cci ccm cco ccp ccr ccs ce- cea cec cee cef cei cem ceo cep cer ces cfa cfc cfe cff cfi cfm cfo cfp cfr cfs ci- cia cic cie cif cii cim cio cip cir cis cma cmc cme cmf cmi cmm cmo cmp cmr cms co- coa coc coe cof coi com coo cop cor cos cpa cpc cpe cpf cpi cpm cpo cpp cpr cps cra crc cre crf cri crm cro crp crr crs csa csc cse csf csi csm cso csp csr css eaa eac eae eaf eai eam eao eap ear eas ec- eca ecc ece ecf eci ecm eco ecr ecs eea eec eee eef eem eeo eep eer ees ef- efa efc efe eff efi efm efo efp efr efs eia eic eie eif eii eim eio eip eir eis em- ema emc eme emf emi emm emo emp emr ems eo- eoa eoc eoe eof eoi eom eoo eop eor eos ep- epa epc epe epf epi epm epo epp epr eps era erc ere erf eri erm ero erp err ers es- esa esc ese esf esi esm eso esp esr ess faa fac fae faf fai fam fao fap far fas fca fcc fce fcf fci fcm fco fcp fcr fcs fea fec fee fef fei fem feo fep fer fes ffa ffc ffe fff ffi ffm ffo ffp ffr ffs fia fic fie fif fii fim fip fir fis fma fmc fme fmf fmi fmm fmo fmp fmr fms foa foc foe fof foi fom foo fop for fos fpa fpc fpe fpi fpm fpo fpp fpr fps fra frc fre frf fri frm fro frp frr frs fsa fsc fse fsf fsi fsm fso fsp fsr fss i-f ia- iaa iac iae iaf iai iam iao iap iar ias ica icc ice icf ici icm ico icp icr ics ie- iea iec iee ief iei iem iep ier ies ifa ifc ife iff ifi ifm ifo ifp ifr ifs iia iic iie iif iii iim iio iip iir iis im- ima imc ime imf imi imm imo imp ims io- ioa ioc ioe iof ioi iom ioo iop ior ios ipa ipc ipe ipf ipi ipm ipo ipp ipr ips ir- ira irc ire irf iri irm iro irp irr irs is- isa isc ise isf isi ism iso isp isr iss m-f m-o m-r maa mac mae maf mai mam mao map mar mas mc- mca mcc mce mcf mci mcm mco mcp mcr mcs mea mec mee mef mei mem meo mep mer mes mfa mfc mfe mff mfi mfm mfo mfp mfr mfs mi- mia mic mie mif mii mim mio mip mir mis mma mmc mme mmf mmi mmm mmo mmp mmr mms moa moc moe mof moi mom moo mop mor mos mpa mpc mpe mpf mpi mpm mpo mpp mpr mps mra mrc mre mrf mri mrm mro mrp mrr mrs msa msc mse msf msi msm mso msp msr mss o-i oaa oac oae oaf oai oam oao oap oar oas oc- oca occ ocf oci ocm oco ocp ocr ocs oea oec oee oef oei oem oeo oep oer oes of- ofa ofc ofe off ofi ofm ofo ofp ofr ofs oia oic oie oif oii oim oio oip oir ois om- oma omc ome omf omi omm omo omp omr oms oo- ooa ooc oof ooi oom ooo oop oor oos op- opa opc ope opf opi opm opo opp opr ops or- ora orc ore orf ori orm oro orp orr ors os- osa osc ose osf osi osm oso osp osr oss p-p paa pac pae paf pai pam pao pap par pas pca pcc pce pcf pci pcm pco pcp pcr pcs pea pec pee pef pei pem peo pep per pes pfa pfc pfe pff pfi pfm pfo pfp pfr pfs pia pic pie pif pii pim pio pip pir pis pma pmc pme pmf pmi pmm pmo pmp pmr pms poa poc poe pof poi pom poo pop por pos ppa ppc ppe ppf ppi ppm ppo ppp ppr pps pra prc pre prf pri prm pro prp prr prs ps- psa psc pse psf psi psm pso psp psr pss ra- raa rac rae raf rai ram rao rap rar ras rca rcc rce rcf rci rcm rco rcp rcr rcs re- rea rec ree ref rei rem reo rep rer res rfa rfc rfe rff rfi rfm rfo rfp rfr rfs ria ric rie rif rii rim rio rip rir ris rma rmc rme rmf rmi rmm rmo rmp rmr rms roa roc roe rof roi rom roo rop ror ros rpa rpc rpe rpf rpi rpm rpo rpp rpr rps rra rrc rrf rri rrm rrp rrr rrs rsa rsc rse rsf rsi rsm rso rsp rsr rss saa sac sae saf sai sam sao sap sar sas sca scc sce scf sci scm sco scp scr scs se- sea sec see sef sei sem seo sep ser ses sfa sfc sfe sff sfi sfm sfo sfp sfr sfs sia sic sie sif sii sim sio sip sir sis sma smc sme smf smi smm smo smp smr sms soa soc soe sof