-er -ic a-a a-c a-i aaa aac aae aai aak aan aar ac- aca acc ace aci ack acn acr aea aec aee aei aek aen aer ai- aia aic aie aii aik ain air aka akc ake aki akk akn akr an- ana anc ane ani ank ann anr ar- ara arc are ari ark arn arr c-- caa cac cae cai cak can car cca ccc cce cci cck ccn ccr ce- cea cec cee cei cek cen cer ci- cia cic cie cii cik cin cir cka ckc cki cn- cna cnc cne cni cnn cnr cra crc cre cri crk crn crr eaa eac eae eai eak ean ear ec- eca ecc ece eci eck ecn ecr eea eec eee eek een eer eia eic eie eii eik ein eir eka ekc eke eki ekr en- ena enc ene eni enk enn enr era erc ere eri erk ern err ia- iaa iac iae iai ian iar ica icc ice ici ick icn icr ie- iea iec iee iei iek ien ier iia iic iie iii iin iir ika ikc ike iki ikk ikr in- ina inc ine ini ink inn inr ir- ira irc ire iri irk irn irr ka- kaa kac kae kai kak kan kar kca kcc kce kci kck kcn kcr ke- kea kec kee kei kek ken ker kia kic kie kii kik kin kir kkc kke kki kkk kkn kkr kn- kna knc kne kni knk knn knr kra krc kri krk krn krr n-i naa nac nae nai nak nan nar nca ncc nce nci nck ncn ncr ne- nea nec nee nei nek nen ner nia nic nie nii nik nin nir nka nkc nke nki nkk nkn nkr nna nnc nne nni nnk nnn nra nrc nre nri nrk nrn nrr ra- raa rac rae rai rak ran rar rca rcc rce rci rcn rcr re- rea rec ree rei rek ren rer ria ric rie rii rik rin rir rkc rke rkk rna rnc rni rnn rnr rra rrc rri rrk rrn rrr