-er -ic a-a a-c a-i aaa aac aae aai aan aao aar ac- aca acc ace aci acn aco acr aea aec aee aei aen aeo aer ai- aia aic aie aii ain aio air an- ana anc ane ani ann ano anr aoa aoc aoe aoi aon aoo aor ar- ara arc are ari arn aro arr c-- caa cac cae cai can cao car cca ccc cce cci ccn cco ccr ce- cea cec cee cei cen ceo cer ci- cia cic cie cii cin cio cir cn- cna cnc cne cni cnn cno cnr co- coa coc coe coi con coo cor cra crc cre cri crn cro crr eaa eac eae eai ean eao ear ec- eca ecc ece eci ecn eco ecr eea eec eee een eeo eer eia eic eie eii ein eio eir en- ena enc ene eni enn eno enr eo- eoa eoc eoe eoi eon eoo eor era erc ere eri ern ero err ia- iaa iac iae iai ian iao iar ica icc ice ici icn ico icr ie- iea iec iee iei ien ier iia iic iie iii iin iio iir in- ina inc ine ini inn ino inr io- ioa ioc ioe ioi ion ioo ior ir- ira irc ire iri irn iro irr n-i naa nac nae nai nan nao nar nca ncc nce nci ncn nco ncr ne- nea nec nee nei nen neo ner nia nic nie nii nin nio nir nna nnc nne nni nnn nno no- noa noc noe noi non noo nor nra nrc nre nri nrn nro nrr o-i oaa oac oae oai oan oao oar oc- oca occ oci ocn oco ocr oea oec oee oei oen oeo oer oia oic oie oii oin oio oir on- ona onc one oni onn ono onr oo- ooa ooc ooi oon ooo oor or- ora orc ore ori orn oro orr ra- raa rac rae rai ran rao rar rca rcc rce rci rcn rco rcr re- rea rec ree rei ren reo rer ria ric rie rii rin rio rir rna rnc rni rnn rno rnr roa roc roe roi ron roo ror rra rrc rri rrn rrr