-ic a-a a-c a-i aaa aac aai aan aao aar aas ac- aca acc aci acn aco acr acs ai- aia aic aii ain aio air ais an- ana anc ani ann ano anr ans aoa aoc aoi aon aoo aor aos ar- ara arc ari arn aro arr ars as- asa asc asi asn aso asr ass c-- caa cac cai can cao car cas cca ccc cci ccn cco ccr ccs ci- cia cic cii cin cio cir cis cn- cna cnc cni cnn cno cnr cns co- coa coc coi con coo cor cos cra crc cri crn cro crr crs csa csc csi csn cso csr css ia- iaa iac iai ian iao iar ias ica icc ici icn ico icr ics iia iic iii iin iio iir iis in- ina inc ini inn ino inr ins io- ioa ioc ioi ion ioo ior ios ir- ira irc iri irn iro irr irs is- isa isc isi isn iso isr iss n-i naa nac nai nan nao nar nas nca ncc nci ncn nco ncr ncs nia nic nii nin nio nir nis nna nnc nni nnn nno nns no- noa noc noi non noo nor nos nra nrc nri nrn nro nrr nrs nsa nsc nsi nsn nso nsr nss o-i oaa oac oai oan oao oar oas oc- oca occ oci ocn oco ocr ocs oia oic oii oin oio oir ois on- ona onc oni onn ono onr ons oo- ooa ooc ooi oon ooo oor oos or- ora orc ori orn oro orr ors os- osa osc osi osn oso osr oss ra- raa rac rai ran rao rar ras rca rcc rci rcn rco rcr rcs ria ric rii rin rio rir ris rna rnc rni rnn rno rnr rns roa roc roi ron roo ror ros rra rrc rri rrn rrr rrs rsa rsc rsi rsn rso rsr rss saa sac sai san sao sar sas sca scc sci scn sco scr scs sia sic sii sin sio sir sis sna snc sni snn sno snr sns soa soc soi son soo sor sos sr- sra src sri srn sro srr srs ss- ssa ssc ssi ssn sso ssr sss