-ic a-a a-c a-i a-t aaa aac aad aai aat ac- aca acc acd aci act ad- ada adc add adi adt ai- aia aic aid aii ait at- ata atc atd ati att c-- caa cac cad cai cat cca ccc ccd cci cct cda cdc cdd cdi cdt ci- cia cic cid cii cit cta ctc ctd cti ctt daa dac dad dai dat dca dcc dcd dci dct dda ddc ddd ddi ddt di- dia dic did dii dit dta dtc dtd dti dtt i-d ia- iaa iac iad iai iat ica icc icd ici ict ida idc idd idi idt iia iic iid iii iit ita itc itd iti itt taa tac tad tai tat tca tcc tcd tci tct tda tdc tdd tdi tdt tia tic tid tii tit tta ttc ttd tti ttt