-ic a-a a-c a-i a-t aaa aac aai aar aas aat ac- aca acc aci acr acs act ai- aia aic aii air ais ait ar- ara arc ari arr ars art as- asa asc asi asr ass ast at- ata atc ati atr ats att c-- caa cac cai car cas cat cca ccc cci ccr ccs cct ci- cia cic cii cir cis cit cra crc cri crr crs crt csa csc csi csr css cst cta ctc cti ctr cts ctt ia- iaa iac iai iar ias iat ica icc ici icr ics ict iia iic iii iir iis iit ir- ira irc iri irr irs irt is- isa isc isi isr iss ist ita itc iti its itt ra- raa rac rai rar ras rat rca rcc rci rcr rcs rct ria ric rii rir ris rit rra rrc rri rrr rrs rrt rsa rsc rsi rsr rss rst rta rtc rti rtr rts rtt saa sac sai sar sas sat sca scc sci scr scs sct sia sic sii sir sis sit sr- sra src sri srr srs srt ss- ssa ssc ssi ssr sss sst sta stc sti str sts stt taa tac tai tar tas tat tca tcc tci tcr tcs tct tia tic tii tir tis tit tra trc tri trr trs trt tsa tsc tsi tsr tss tst tta ttc tti ttr tts ttt