-er ddd dde ddm ddp ddr dds ddt de- ded dee dem dep der des det dmd dme dmm dmp dmr dms dmt dpd dpe dpm dpp dpr dps dpt drd dre drm drp drr drs drt dsd dse dsm dsp dsr dss dst dtd dte dtm dtp dtr dts dtt ed- edd ede edm edp edr eds edt eed eee eem eep eer ees eet em- emd eme emm emp emr ems emt ep- epd epe epm epp epr eps ept erd ere erm erp err ers ert es- esd ese esm esp esr ess est etd ete etm etp etr ets ett m-r mdd mde mdm mdp mdr mds mdt med mee mem mep mer mes met mmd mme mmm mmp mmr mms mmt mpd mpe mpm mpp mpr mps mpt mrd mre mrm mrp mrr mrs mrt msd mse msm msp msr mss mst mtd mte mtm mtp mtr mts mtt p-p pdd pde pdm pdp pdr pds pdt ped pee pem pep per pes pet pmd pme pmm pmp pmr pms pmt ppd ppe ppm ppp ppr pps ppt prd pre prm prp prr prs prt ps- psd pse psm psp psr pss pst pt- ptd pte ptm ptp ptr pts ptt rdd rde rdm rdp rdr rds rdt re- red ree rem rep rer res ret rmd rme rmm rmp rmr rms rmt rpd rpe rpm rpp rpr rps rpt rrd rrm rrp rrr rrs rrt rsd rse rsm rsp rsr rss rst rtd rte rtm rtp rtr rts rtt sdd sde sdm sdp sdr sds sdt se- sed see sem sep ser ses set smd sme smm smp smr sms smt spd spe spm spp spr sps spt sr- srd sre srm srp srr srs srt ss- ssd sse ssm ssp ssr sss sst std ste stm stp str sts stt tdd tde tdm tdp tdr tds tdt te- ted tee tem tep ter tes tet tmd tme tmm tmp tmr tms tmt tpd tpe tpm tpp tpr tps tpt trd tre trm trp trr trs trt tsd tse tsm tsp tsr tss tst ttd tte ttm ttp ttr tts ttt

dddd ddes ddps ddre ddss ddts dedd dede deed deem deep deer dees deet dem- demd deme dems depe depp depr deps dept der- dere derm derp derr ders des- dese desp dess dest dete detr dets dmds dmdt dmps dmsp dmss dmst dmts dpdt dper dpms dpsd dpst dpts dred dree drem dres dret drms drrs drsp dsdm dsdp dsdr dsms dsps dspt dsrp dsrr dssp dsst dsts dtdp dted dtmp dtss dttp edde eddm eddp edds ede- edem eder edes edme edms edrm edss edts eede eeee eees eems eeps eers eese eete eets emds emdt emer emes emet emme emms empd empe emps empt emre emrs emse emst emte emtp emts epee eper epes epmd epms eppp epps eprp eprs epsd epsp epss epte erde erds ered erem erer eres eret erme erms erpe erps erre errs erse erst erts esdp esds esee esem eser eses eset esme esmr esmt espe espp esps esrd esse essp esst estd este estp estr ests etds etee etem eter etes etre etrm ette mddm mdds mdme mdmp mdpp mdsd mdse mdsp mdst medd mede meds meed meem meep meer mees meet meme memr mems mepe meps mer- merd mere merm merp mers mert mes- mese mesr mess mest met- mete mets mett mmds mmes mmmd mmmm mmms mmpr mmrp mmsd mmse mmst mmts mpes mppe mppp mpps mprp mpst mptp mrdd mrds mred mree mres mrmd mrps mrsd mrse mrtm mrts mrtt msde msdp msed msee msem msmm msms mspe mspp msrp msrt mssm mssp mssr msst mstp mstr msts mtep mtpd mtre mtrr mtss mtst mttr mtts pdes pdms pdpr pdrs pdsd pdss ped- pede peds peed peep peer pees peet pemt pepd pepe peps per- perd pere perm perp perr pers pert pese pess pest pete petr pets pett pmed pmmp pmpm pmrs pmrt pmse pmts ppds pper ppms pppd pppp ppps pprm ppss ppts pptt pre- pred pree prem prep pres pret prpd prps prrd prrm prrs prsd prse prss prtm prtp prtr psdp psdr psds pspp pspr psps psrd psrp psse pssm psst psts pter ptmp ptms ptpd ptrd ptsd rder rdms redd rede redr reds reed reem reep rees reet reme remp rems repe repp repr reps rept rerd rere rers rert rese resp ress rest retd rete retr rets rett rmrp rmsp rmst rpdp rpet rpms rpps rptd rpts rred rrmp rrrr rrsp rsdd rsds rsee rsme rsps rsre rstp rsts rtdt rtee rtes rtmp rtms rtps rtss rttp rtts sdds sdep sder sdes sdet sdms sdpr sdps sdrs sdsm sdss sdtm se-d se-e se-s se-t sede seds seed seem seep seer sees seet seme semp sems sepd sepe sepp sepr seps sept serd sere serm serp serr sers sert sese sess sest set- sete sets sett smdr smed smee smep smet smps smrt smsd smsp smss smtd smte smtp spde spdm spdp spdr spdt sped spee sper spes spet spmd spme spms spmt sppd spps sprd sprm sprs spsd spse spsp spss spst sptr spts srde srem sres srps srpt srsd srsp srtp srtr ssdd ssdm ssdp ssee ssem ssep sses sset sspe ssps sspt ssrm ssrs sssm ssss sstd sstp ssts stdm stds sted stee stem step ster stes stet stmp stms stmt stpd stpp stps strd stre strs stsm stss sttd sttr tdes tdse tdss tedd tede tedm teds teed teem teer tees teet teme temp tems tepe tepp ter- tere term terp terr ters tesd tese tesp tess test tete tetr tets tett tmdp tmed tmep tmps tmsp tmtt tped tper tpms tpmt tppd tppp tppr tprs tpte tptp tptr tre- tred tree trem tres tret trmd trms trpe trpm trpp trps trsd trst trte trtr tses tset tsmp tsps tspt tsse tssm tssr tsst tstm tsts tter ttms ttss tttt

-tree d-mer ddddd ddrmm dedde dedee deder dedes deede deeds deeme deems