-er -ic a-a a-c a-i a-t aaa aac aad aae aaf aai aao aar aas aat ac- aca acc acd ace acf aci aco acr acs act ad- ada adc add ade adf adi ado adr ads adt aea aec aed aee aef aei aeo aer aes aet af- afa afc afd afe aff afi afo afr afs aft ai- aia aic aid aie aif aii aio air ais ait aoa aoc aod aoe aof aoi aoo aor aos aot ar- ara arc ard are arf ari aro arr ars art as- asa asc asd ase asf asi aso asr ass ast at- ata atc atd ate atf ati ato atr ats att c-- caa cac cad cae caf cai cao car cas cat cca ccc ccd cce ccf cci cco ccr ccs cct cda cdc cdd cde cdf cdi cdo cdr cds cdt ce- cea cec ced cee cef cei ceo cer ces cet cfa cfc cfd cfe cff cfi cfo cfr cfs cft ci- cia cic cid cie cif cii cio cir cis cit co- coa coc cod coe cof coi coo cor cos cot cra crc crd cre crf cri cro crr crs crt csa csc csd cse csf csi cso csr css cst cta ctc ctd cte ctf cti cto ctr cts ctt daa dac dad dae daf dai dao dar das dat dca dcc dcd dce dcf dci dco dcr dcs dct dda ddc ddd dde ddf ddi ddo ddr dds ddt de- dea dec ded dee def dei deo der des det dfa dfc dfd dfe dff dfi dfo dfr dfs dft di- dia dic did die dif dii dio dir dis dit doa doc dod doe dof doi doo dor dos dot dra drc drd dre dri dro drr drs drt dsa dsc dsd dse dsf dsi dso dsr dss dst dta dtc dtd dte dtf dti dto dtr dts dtt eaa eac ead eae eaf eai eao ear eas eat ec- eca ecc ecd ece ecf eci eco ecr ecs ect ed- eda edc edd ede edf edi edo edr eds edt eea eec eed eee eef eeo eer ees eet ef- efa efc efd efe eff efi efo efr efs eft eia eic eid eie eif eii eio eir eis eit eo- eoa eoc eod eoe eof eoi eoo eor eos eot era erc erd ere erf eri ero err ers ert es- esa esc esd ese esf esi eso esr ess est eta etc etd ete etf eti eto etr ets ett faa fac fad fae faf fai fao far fas fat fca fcc fcd fce fcf fci fco fcr fcs fct fda fdc fdd fde fdf fdi fdo fdr fds fdt fea fec fed fee fef fei feo fer fes fet ffa ffc ffd ffe fff ffi ffo ffr ffs fft fia fic fid fie fif fii fir fis fit foa foc foe fof foi foo for fos fot fra frc frd fre frf fri fro frr frs frt fsa fsc fsd fse fsf fsi fso fsr fss fst fta ftc ftd fte ftf fti fto ftr fts ftt i-d i-f ia- iaa iac iad iae iaf iai iao iar ias iat ica icc icd ice icf ici ico icr ics ict ida idc idd ide idf idi ido idr ids idt ie- iea iec ied iee ief iei ier ies iet ifa ifc ifd ife iff ifi ifo ifr ifs ift iia iic iid iie iif iii iio iir iis iit io- ioa ioc iod ioe iof ioi ioo ior ios iot ir- ira irc ird ire irf iri iro irr irs irt is- isa isc isd ise isf isi iso isr iss ist ita itc itd ite itf iti ito its itt o-i oaa oac oad oae oaf oai oao oar oas oat oc- oca occ ocd ocf oci oco ocr ocs oct oda odc odd ode odf odi odo odr ods odt oea oec oed oee oef oei oeo oer oes oet of- ofa ofc ofd ofe off ofi ofo ofr ofs oft oia oic oid oie oif oii oio oir ois oit oo- ooa ooc ood oof ooi ooo oor oos oot or- ora orc ord ore orf ori oro orr ors ort os- osa osc osd ose osf osi oso osr oss ost ot- ota otc otd ote otf oti oto otr ots ott ra- raa rac rad rae raf rai rao rar ras rat rca rcc rcd rce rcf rci rco rcr rcs rct rda rdc rdd rde rdf rdi rdo rdr rds rdt re- rea rec red ree ref rei reo rer res ret rfa rfc rfd rfe rff rfi rfo rfr rfs rft ria ric rid rie rif rii rio rir ris rit roa roc rod roe rof roi roo ror ros rot rra rrc rrd rrf rri rrr rrs rrt rsa rsc rsd rse rsf rsi rso rsr rss rst rta rtc rtd rte rtf rti rto rtr rts rtt saa sac sad sae saf sai sao sar sas sat sca scc scd sce scf sci sco scr scs sct sda sdc sdd sde sdf sdi sdo sdr sds sdt se- sea sec sed see sef sei seo ser ses set sfa sfc sfd sfe sff sfi sfo sfr sfs sft sia sic sid sie sif sii sio sir sis sit soa soc sod soe sof soi soo sor sos sot sr- sra src srd sre srf sri sro srr srs srt ss- ssa ssc ssd sse ssf ssi sso ssr sss sst sta stc std ste stf sti sto str sts stt taa tac tad tae taf tai tao tar tas tat tca tcc tcd tce tcf tci tco tcr tcs tct tda tdc tdd tde tdf tdi tdo tdr tds tdt te- tea tec ted tee tef tei teo ter tes tet tfa tfc tfd tfe tff tfi tfo tfr tfs tft tia tic tid tie tif tii tio tir tis tit to- toa toc tod toe tof