-er -ic a-a a-c a-i aaa aac aae aai aan aap aar ac- aca acc ace aci acn acp acr aea aec aee aei aen aep aer ai- aia aic aie aii ain aip air an- ana anc ane ani ann anp anr ap- apa apc ape api apn app apr ar- ara arc are ari arn arp arr c-- caa cac cae cai can cap car cca ccc cce cci ccn ccp ccr ce- cea cec cee cei cen cep cer ci- cia cic cie cii cin cip cir cn- cna cnc cne cni cnn cnp cnr cpa cpc cpe cpi cpn cpp cpr cra crc cre cri crn crp crr eaa eac eae eai ean eap ear ec- eca ecc ece eci ecn ecr eea eec eee een eep eer eia eic eie eii ein eip eir en- ena enc ene eni enn enp enr ep- epa epc epe epi epn epp epr era erc ere eri ern erp err ia- iaa iac iae iai ian iap iar ica icc ice ici icn icp icr ie- iea iec iee iei ien iep ier iia iic iie iii iin iip iir in- ina inc ine ini inn inp inr ipa ipc ipe ipi ipn ipp ipr ir- ira irc ire iri irn irp irr n-i naa nac nae nai nan nap nar nca ncc nce nci ncn ncp ncr ne- nea nec nee nei nen nep ner nia nic nie nii nin nip nir nna nnc nne nni nnn nnp npa npc npe npi npn npp npr nra nrc nre nri nrn nrp nrr p-p paa pac pae pai pan pap par pca pcc pce pci pcn pcp pcr pea pec pee pei pen pep per pia pic pie pii pin pip pir pn- pna pnc pne pni pnn pnp pnr ppa ppc ppe ppi ppn ppp ppr pra prc pre pri prn prp prr ra- raa rac rae rai ran rap rar rca rcc rce rci rcn rcp rcr re- rea rec ree rei ren rep rer ria ric rie rii rin rip rir rna rnc rni rnn rnp rnr rpa rpc rpe rpi rpn rpp rpr rra rrc rri rrn rrp rrr