-er -ic a-a a-c a-i a-t aaa aac aae aai aao aar aas aat ac- aca acc ace aci aco acr acs act aea aec aee aei aeo aer aes aet ai- aia aic aie aii aio air ais ait aoa aoc aoe aoi aoo aor aos aot ar- ara arc are ari aro arr ars art as- asa asc ase asi aso asr ass ast at- ata atc ate ati ato atr ats att c-- caa cac cae cai cao car cas cat cca ccc cce cci cco ccr ccs cct ce- cea cec cee cei ceo cer ces cet ci- cia cic cie cii cio cir cis cit co- coa coc coe coi coo cor cos cot cra crc cre cri cro crr crs crt csa csc cse csi cso csr css cst cta ctc cte cti cto ctr cts ctt eaa eac eae eai eao ear eas eat ec- eca ecc ece eci eco ecr ecs ect eea eec eee eeo eer ees eet eia eic eie eii eio eir eis eit eo- eoa eoc eoe eoi eoo eor eos eot era erc ere eri ero err ers ert es- esa esc ese esi eso esr ess est eta etc ete eti eto etr ets ett ia- iaa iac iae iai iao iar ias iat ica icc ice ici ico icr ics ict ie- iea iec iee iei ier ies iet iia iic iie iii iio iir iis iit io- ioa ioc ioe ioi ioo ior ios iot ir- ira irc ire iri iro irr irs irt is- isa isc ise isi iso isr iss ist ita itc ite iti ito its itt o-i oaa oac oae oai oao oar oas oat oc- oca occ oci oco ocr ocs oct oea oec oee oei oeo oer oes oet oia oic oie oii oio oir ois oit oo- ooa ooc ooi ooo oor oos oot or- ora orc ore ori oro orr ors ort os- osa osc ose osi oso osr oss ost ot- ota otc ote oti oto otr ots ott ra- raa rac rae rai rao rar ras rat rca rcc rce rci rco rcr rcs rct re- rea rec ree rei reo rer res ret ria ric rie rii rio rir ris rit roa roc roe roi roo ror ros rot rra rrc rri rrr rrs rrt rsa rsc rse rsi rso rsr rss rst rta rtc rte rti rto rtr rts rtt saa sac sae sai sao sar sas sat sca scc sce sci sco scr scs sct se- sea sec see sei seo ser ses set sia sic sie sii sio sir sis sit soa soc soe soi soo sor sos sot sr- sra src sre sri sro srr srs srt ss- ssa ssc sse ssi sso ssr sss sst sta stc ste sti sto str sts stt taa tac tae tai tao tar tas tat tca tcc tce tci tco tcr tcs tct te- tea tec tee tei teo ter tes tet tia tic tie tii tio tir tis tit to- toa toc toe toi too tor tos tot tra trc tre tri tro trr trs trt tsa tsc tse tsi tso tsr tss tst tta ttc tte tti tto ttr tts ttt