-ic a-a a-c a-i aaa aac aae aai aao aas ac- aca acc ace aci aco acs aea aec aee aei aeo aes ai- aia aic aie aii aio ais aoa aoc aoe aoi aoo aos as- asa asc ase asi aso ass c-- caa cac cae cai cao cas cca ccc cce cci cco ccs ce- cea cec cee cei ceo ces ci- cia cic cie cii cio cis co- coa coc coe coi coo cos csa csc cse csi cso css eaa eac eae eai eao eas ec- eca ecc ece eci eco ecs eea eec eee eeo ees eia eic eie eii eio eis eo- eoa eoc eoe eoi eoo eos es- esa esc ese esi eso ess ia- iaa iac iae iai iao ias ica icc ice ici ico ics ie- iea iec iee iei ies iia iic iie iii iio iis io- ioa ioc ioe ioi ioo ios is- isa isc ise isi iso iss o-i oaa oac oae oai oao oas oc- oca occ oci oco ocs oea oec oee oei oeo oes oia oic oie oii oio ois oo- ooa ooc ooi ooo oos os- osa osc ose osi oso oss saa sac sae sai sao sas sca scc sce sci sco scs se- sea sec see sei seo ses sia sic sie sii sio sis soa soc soe soi soo sos ss- ssa ssc sse ssi sso sss