-er a-a a-c a-t aaa aac aad aae aan aao aar aas aat ac- aca acc acd ace acn aco acr acs act ad- ada adc add ade adn ado adr ads adt aea aec aed aee aen aeo aer aes aet an- ana anc and ane ann ano anr ans ant aoa aoc aod aoe aon aoo aor aos aot ar- ara arc ard are arn aro arr ars art as- asa asc asd ase asn aso asr ass ast at- ata atc atd ate atn ato atr ats att c-- caa cac cad cae can cao car cas cat cca ccc ccd cce ccn cco ccr ccs cct cda cdc cdd cde cdn cdo cdr cds cdt ce- cea cec ced cee cen ceo cer ces cet cn- cna cnc cnd cne cnn cno cnr cns cnt co- coa coc cod coe con coo cor cos cot cra crc crd cre crn cro crr crs crt csa csc csd cse csn cso csr css cst cta ctc ctd cte ctn cto ctr cts ctt daa dac dad dae dan dao dar das dat dca dcc dcd dce dcn dco dcr dcs dct dda ddc ddd dde ddn ddo ddr dds ddt de- dea dec ded dee den deo der des det dna dnc dnd dne dnn dno dnr dns dnt doa doc dod doe don doo dor dos dot dra drc drd dre drn dro drr drs drt dsa dsc dsd dse dsn dso dsr dss dst dta dtc dtd dte dtn dto dtr dts dtt eaa eac ead eae ean eao ear eas eat ec- eca ecc ecd ece ecn eco ecr ecs ect ed- eda edc edd ede edn edo edr eds edt eea eec eed eee een eeo eer ees eet en- ena enc end ene enn eno enr ens ent eo- eoa eoc eod eoe eon eoo eor eos eot era erc erd ere ern ero err ers ert es- esa esc esd ese esn eso esr ess est eta etc etd ete etn eto etr ets ett naa nac nad nae nan nao nar nas nat nca ncc ncd nce ncn nco ncr ncs nct nda ndc ndd nde ndn ndo ndr nds ndt ne- nea nec ned nee nen neo ner nes net nna nnc nne nnn nno nns nnt no- noa noc nod noe non noo nor nos not nra nrc nrd nre nrn nro nrr nrs nrt nsa nsc nsd nse nsn nso nsr nss nst nta ntc ntd nte ntn nto ntr nts ntt oaa oac oad oae oan oao oar oas oat oc- oca occ ocd ocn oco ocr ocs oct oda odc odd ode odn odo odr ods odt oea oec oed oee oen oeo oer oes oet on- ona onc ond one onn ono onr ons ont oo- ooa ooc ood oon ooo oor oos oot or- ora orc ord ore orn oro orr ors ort os- osa osc osd ose osn oso osr oss ost ot- ota otc otd ote otn oto otr ots ott ra- raa rac rad rae ran rao rar ras rat rca rcc rcd rce rcn rco rcr rcs rct rda rdc rdd rde rdn rdo rdr rds rdt re- rea rec red ree ren reo rer res ret rna rnc rnd rnn rno rnr rns rnt roa roc rod roe ron roo ror ros rot rra rrc rrd rrn rrr rrs rrt rsa rsc rsd rse rsn rso rsr rss rst rta rtc rtd rte rtn rto rtr rts rtt saa sac sad sae san sao sar sas sat sca scc scd sce scn sco scr scs sct sda sdc sdd sde sdn sdo sdr sds sdt se- sea sec sed see sen seo ser ses set sna snc snd sne snn sno snr sns snt soa soc sod soe son soo sor sos sot sr- sra src srd sre srn sro srr srs srt ss- ssa ssc ssd sse ssn sso ssr sss sst sta stc std ste stn sto str sts stt taa tac tad tae tan tao tar tas tat tca tcc tcd tce tcn tco tcr tcs tct tda tdc tdd tde tdn tdo tdr tds tdt te- tea tec ted tee ten teo ter tes tet tna tnc tnd tne tnn tno tnr tns tnt to- toa toc tod toe ton too tor tos tot tra trc trd tre trn tro trr trs trt tsa tsc tsd tse tsn tso tsr tss tst tta ttc ttd tte ttn tto ttr tts ttt