-er -ic a-a a-c a-i a-t aaa aac aae aai aap aar aas aat ac- aca acc ace aci acp acr acs act aea aec aee aei aep aer aes aet ai- aia aic aie aii aip air ais ait ap- apa apc ape api app apr aps apt ar- ara arc are ari arp arr ars art as- asa asc ase asi asp asr ass ast at- ata atc ate ati atp atr ats att c-- caa cac cae cai cap car cas cat cca ccc cce cci ccp ccr ccs cct ce- cea cec cee cei cep cer ces cet ci- cia cic cie cii cip cir cis cit cpa cpc cpe cpi cpp cpr cps cpt cra crc cre cri crp crr crs crt csa csc cse csi csp csr css cst cta ctc cte cti ctp ctr cts ctt eaa eac eae eai eap ear eas eat ec- eca ecc ece eci ecr ecs ect eea eec eee eep eer ees eet eia eic eie eii eip eir eis eit ep- epa epc epe epi epp epr eps ept era erc ere eri erp err ers ert es- esa esc ese esi esp esr ess est eta etc ete eti etp etr ets ett ia- iaa iac iae iai iap iar ias iat ica icc ice ici icp icr ics ict ie- iea iec iee iei iep ier ies iet iia iic iie iii iip iir iis iit ipa ipc ipe ipi ipp ipr ips ipt ir- ira irc ire iri irp irr irs irt is- isa isc ise isi isp isr iss ist ita itc ite iti itp its itt p-p paa pac pae pai pap par pas pat pca pcc pce pci pcp pcr pcs pct pea pec pee pei pep per pes pet pia pic pie pii pip pir pis pit ppa ppc ppe ppi ppp ppr pps ppt pra prc pre pri prp prr prs prt ps- psa psc pse psi psp psr pss pst pt- pta ptc pte pti ptp ptr pts ptt ra- raa rac rae rai rap rar ras rat rca rcc rce rci rcp rcr rcs rct re- rea rec ree rei rep rer res ret ria ric rie rii rip rir ris rit rpa rpc rpe rpi rpp rpr rps rpt rra rrc rri rrp rrr rrs rrt rsa rsc rse rsi rsp rsr rss rst rta rtc rte rti rtp rtr rts rtt saa sac sae sai sap sar sas sat sca scc sce sci scp scr scs sct se- sea sec see sei sep ser ses set sia sic sie sii sip sir sis sit spa spc spe spi spp spr sps spt sr- sra src sre sri srp srr srs srt ss- ssa ssc sse ssi ssp ssr sss sst sta stc ste sti stp str sts stt taa tac tae tai tap tar tas tat tca tcc tce tci tcp tcr tcs tct te- tea tec tee tei tep ter tes tet tia tic tie tii tip tir tis tit tpa tpc tpe tpi tpp tpr tps tpt tra trc tre tri trp trr trs trt tsa tsc tse tsi tsp tsr tss tst tta ttc tte tti ttp ttr tts ttt