-er c-- ccc ccd cce ccm cco ccr cct cdc cdd cde cdm cdo cdr cdt ce- cec ced cee cem ceo cer cet cmc cmd cme cmm cmo cmr cmt co- coc cod coe com coo cor cot crc crd cre crm cro crr crt ctc ctd cte ctm cto ctr ctt dcc dcd dce dcm dco dcr dct ddc ddd dde ddm ddo ddr ddt de- dec ded dee dem deo der det dmc dmd dme dmm dmo dmr dmt doc dod doe dom doo dor dot drc drd dre drm dro drr drt dtc dtd dte dtm dto dtr dtt ec- ecc ecd ece ecm eco ecr ect ed- edc edd ede edm edo edr edt eec eed eee eem eeo eer eet em- emc emd eme emm emo emr emt eo- eoc eod eoe eom eoo eor eot erc erd ere erm ero err ert etc etd ete etm eto etr ett m-o m-r mc- mcc mcd mce mcm mco mcr mct mdc mdd mde mdm mdo mdr mdt mec med mee mem meo mer met mmc mmd mme mmm mmo mmr mmt moc mod moe mom moo mor mot mrc mrd mre mrm mro mrr mrt mtc mtd mte mtm mto mtr mtt oc- occ ocd ocm oco ocr oct odc odd ode odm odo odr odt oec oed oee oem oeo oer oet om- omc omd ome omm omo omr omt oo- ooc ood oom ooo oor oot or- orc ord ore orm oro orr ort ot- otc otd ote otm oto otr ott rcc rcd rce rcm rco rcr rct rdc rdd rde rdm rdo rdr rdt re- rec red ree rem reo rer ret rmc rmd rme rmm rmo rmr rmt roc rod roe rom roo ror rot rrc rrd rrm rrr rrt rtc rtd rte rtm rto rtr rtt tcc tcd tce tcm tco tcr tct tdc tdd tde tdm tdo tdr tdt te- tec ted tee tem teo ter tet tmc tmd tme tmm tmo tmr tmt to- toc tod toe tom too tor tot trc trd tre trm tro trr trt ttc ttd tte ttm tto ttr ttt

c-cd cccc cccm ccdc ccdm ccdr cced ccee ccmc ccmd ccmm ccoc ccod ccom ccrc ccre ccrt cctc cctt cd-e cd-r cddr cdec cder cdom cdot cdre cec- cece cecm ceco cect cedd cede cedo cedt ceec ceem ceme cemm cemr ceor cer- cerc cerd cere cero cert cet- cete ceto cmcc cmdr cmec cmmc cmoc cmot cmrr cmtc coce coco coct codd code coed com- comc comd come comm como comr cood coom coot cor- corc cord core corm coro corr cort cotc cote coto cott crcc crce crcr crdc cre- crec cred cree crem creo cret crmo croc crod croe crom croo cror crot crrt crtc crtm ctec ctmo ctor ctot ctrc ctrm dccc dcct dcom dctc dctm dddd ddoc ddot ddrc ddre dec- decc decd dece deco dect dedd dede dedo deed deem deer deet dem- demd deme demo deor der- derc dere derm dero derr dete deto detr dmcc dmcm dmdc dmdt dmrc doce doco doct dod- dodd dode dodo doer dome domm domo dood doom door doot dorc dord dore dorm doro dorr dort dotd dote doto dott dred dree drem dret drod drom drot dtcc dted dtor dtot eccc ecce eccm ecco ecct ecdc eced ecem eco- ecod ecot ecrc ecrm ecrr ect- ectc ecto eddc edde eddm eddo ede- edem eder edme edoc edod edom edrm eede eeee eemo eeoc eerc eero eetc eete emcc emco emdt emer emet emme emod emor emre emte eocd eode eore eotc eotd eoto ercc erce erde erec ered erem erer eret ermc erme ermo eroc erod eroe eroo errc erre erro etcc etco etec etee etem eter etoe etre etrm etro ette etto mccc mccd mcdc mcdd mcde mcdo mced mcmc mcmt mcot mcrc mcrd mctc mdcc mddm mdmc mdme mdoc mdot mdrc mec- mecc mecd mece meco mecr medd mede medo meed meem meer meet memc meme memo memr meoc meor mer- merc merd mere merm mero mert met- mete meto mett mmcc mmcd mmcm mmct mmdc mmmc mmmd mmmm mmod mmor mmrc moco modd mode modo moed moet mome momo mooc mood mooe moor moot mord more moro mort motd mote motm moto mott mr-c mrcc mrce mrdd mred mree mrmc mrmd mrrc mrtm mrtt mtcr mtoe mtom mtor mtrc mtre mtrr mttr o-eo occc occt oce oced ocee ocet ocom ocre ocro ocrr oct- octe octo oddd oded odem odeo oder odet odmr odom odoo odor odot oec- oecc oedo oeec oeme oere oerm omed omee omeo omer omet omo- omoe omoo omor omre omro oocr ooer oome oooo oord oore oort orce orco orde ordo ore- orec ored orem oreo orer orme ormo oro- oroe orom oror orot orro ortc orte orto otcd oted otee otem oter oto- otoe otoo otor otre otro otte otto rccc rcdc rcde rcet rcrd rctc rdcm rder rdoc recc recd rece recm recr rect redc redd rede redo redr reed reem reet reme remo reod reot rerd rere rero rert retd rete reto retr rett rocc roce roco rodd rode rodo roed roer roet romd rome romm romo rood room roor root rorc rore roro rort rotc rote roto rotr rott rred rrmc rrrr rtcc rtce rtcm rtdt rtee rtmc t-mo tccc tcdd tcom tctc tdor teco tecr tect tedd tede tedm teec teed teem teer teet teme temo teom teor ter- terc tere term tero terr tete teto tetr tett tmcc tmcm tmed tmro tmtt toce toco todd tode todo todt toed toee toer toet tome tomm tomo tomt tood toom toor toot torc tord tore torm toro torr tort totc totd tote totm toto totr tott trcc tre- trec tred tree trem treo tret trmd troc trod troe trom troo trot trtc trte trtr tteo tter ttoe tttt

-tree c-cor c-dot c-met c-tec ccccc ccett cd-mo cdrom ceco- ceddo ceded cedem ceder cedor cedr- cedre