-er a-a a-c a-t aaa aac aad aae aam aao aar aat ac- aca acc acd ace acm aco acr act ad- ada adc add ade adm ado adr adt aea aec aed aee aem aeo aer aet ama amc amd ame amm amo amr amt aoa aoc aod aoe aom aoo aor aot ar- ara arc ard are arm aro arr art at- ata atc atd ate atm ato atr att c-- caa cac cad cae cam cao car cat cca ccc ccd cce ccm cco ccr cct cda cdc cdd cde cdm cdo cdr cdt ce- cea cec ced cee cem ceo cer cet cma cmc cmd cme cmm cmo cmr cmt co- coa coc cod coe com coo cor cot cra crc crd cre crm cro crr crt cta ctc ctd cte ctm cto ctr ctt daa dac dad dae dam dao dar dat dca dcc dcd dce dcm dco dcr dct dda ddc ddd dde ddm ddo ddr ddt de- dea dec ded dee dem deo der det dma dmc dmd dme dmm dmo dmr dmt doa doc dod doe dom doo dor dot dra drc drd dre drm dro drr drt dta dtc dtd dte dtm dto dtr dtt eaa eac ead eae eam eao ear eat ec- eca ecc ecd ece ecm eco ecr ect ed- eda edc edd ede edm edo edr edt eea eec eed eee eem eeo eer eet em- ema emc emd eme emm emo emr emt eo- eoa eoc eod eoe eom eoo eor eot era erc erd ere erm ero err ert eta etc etd ete etm eto etr ett m-o m-r maa mac mad mae mam mao mar mat mc- mca mcc mcd mce mcm mco mcr mct mda mdc mdd mde mdm mdo mdr mdt mea mec med mee mem meo mer met mma mmc mmd mme mmm mmo mmr mmt moa moc mod moe mom moo mor mot mra mrc mrd mre mrm mro mrr mrt mta mtc mtd mte mtm mto mtr mtt oaa oac oad oae oam oao oar oat oc- oca occ ocd ocm oco ocr oct oda odc odd ode odm odo odr odt oea oec oed oee oem oeo oer oet om- oma omc omd ome omm omo omr omt oo- ooa ooc ood oom ooo oor oot or- ora orc ord ore orm oro orr ort ot- ota otc otd ote otm oto otr ott ra- raa rac rad rae ram rao rar rat rca rcc rcd rce rcm rco rcr rct rda rdc rdd rde rdm rdo rdr rdt re- rea rec red ree rem reo rer ret rma rmc rmd rme rmm rmo rmr rmt roa roc rod roe rom roo ror rot rra rrc rrd rrm rrr rrt rta rtc rtd rte rtm rto rtr rtt taa tac tad tae tam tao tar tat tca tcc tcd tce tcm tco tcr tct tda tdc tdd tde tdm tdo tdr tdt te- tea tec ted tee tem teo ter tet tma tmc tmd tme tmm tmo tmr tmt to- toa toc tod toe tom too tor tot tra trc trd tre trm tro trr trt tta ttc ttd tte ttm tto ttr ttt