-ic a-a a-c a-i a-t aaa aac aad aai aas aat ac- aca acc acd aci acs act ad- ada adc add adi ads adt ai- aia aic aid aii ais ait as- asa asc asd asi ass ast at- ata atc atd ati ats att c-- caa cac cad cai cas cat cca ccc ccd cci ccs cct cda cdc cdd cdi cds cdt ci- cia cic cid cii cis cit csa csc csd csi css cst cta ctc ctd cti cts ctt daa dac dad dai das dat dca dcc dcd dci dcs dct dda ddc ddd ddi dds ddt di- dia dic did dii dis dit dsa dsc dsd dsi dss dst dta dtc dtd dti dts dtt i-d ia- iaa iac iad iai ias iat ica icc icd ici ics ict ida idc idd idi ids idt iia iic iid iii iis iit is- isa isc isd isi iss ist ita itc itd iti its itt saa sac sad sai sas sat sca scc scd sci scs sct sda sdc sdd sdi sds sdt sia sic sid sii sis sit ss- ssa ssc ssd ssi sss sst sta stc std sti sts stt taa tac tad tai tas tat tca tcc tcd tci tcs tct tda tdc tdd tdi tds tdt tia tic tid tii tis tit tsa tsc tsd tsi tss tst tta ttc ttd tti tts ttt