-er ddd dde ddf ddo ddp ddr ddt de- ded dee def deo dep der det dfd dfe dff dfo dfp dfr dft dod doe dof doo dop dor dot dpd dpe dpf dpo dpp dpr dpt drd dre dro drp drr drt dtd dte dtf dto dtp dtr dtt ed- edd ede edf edo edp edr edt eed eee eef eeo eep eer eet ef- efd efe eff efo efp efr eft eo- eod eoe eof eoo eop eor eot ep- epd epe epf epo epp epr ept erd ere erf ero erp err ert etd ete etf eto etp etr ett fdd fde fdf fdo fdp fdr fdt fed fee fef feo fep fer fet ffd ffe fff ffo ffp ffr fft foe fof foo fop for fot fpd fpe fpo fpp fpr fpt frd fre frf fro frp frr frt ftd fte ftf fto ftp ftr ftt odd ode odf odo odp odr odt oed oee oef oeo oep oer oet of- ofd ofe off ofo ofp ofr oft oo- ood oof ooo oop oor oot op- opd ope opf opo opp opr opt or- ord ore orf oro orp orr ort ot- otd ote otf oto otp otr ott p-p pdd pde pdf pdo pdp pdr pdt ped pee pef peo pep per pet pfd pfe pff pfo pfp pfr pft pod poe pof poo pop por pot ppd ppe ppf ppo ppp ppr ppt prd pre prf pro prp prr prt pt- ptd pte ptf pto ptp ptr ptt rdd rde rdf rdo rdp rdr rdt re- red ree ref reo rep rer ret rfd rfe rff rfo rfp rfr rft rod roe rof roo rop ror rot rpd rpe rpf rpo rpp rpr rpt rrd rrf rrp rrr rrt rtd rte rtf rto rtp rtr rtt tdd tde tdf tdo tdp tdr tdt te- ted tee tef teo tep ter tet tfd tfe tff tfo tfp tfr tft to- tod toe tof too top tor tot tpd tpe tpf tpo tpp tpr tpt trd tre trf tro trp trr trt ttd tte ttf tto ttp ttr ttt

dddd ddot ddpo ddre dedd dede dedo deed deef deep deer deet defe deff defo deft deop deor depe depo depp depr dept der- dere derf dero derp derr dete deto detr dfdt dfer dfoe dfrf dftr dod- dodd dode dodo doer doff dood doof doop door doot dope dopo dopp dopr dopt dord dore dorf doro dorp dorr dort dotd dote doto dott dpdt dper dred dree dref dret drod drof drop drot dtdp dted dtor dtot dttp edde eddo eddp ede- eder edod eede eeee eefe eero eete efeo efet efor eft- eftp eode eore eotd eoto epee eper epod epor epot eppo eppp epro eprp epte erde erdf ered erer eret erft erod eroe eroo erpe erre erro etee eter etfe etoe etre etro ette etto fdot fede feed feer feet fefe feff fefo feod feof ferd fere fero ferr fert fete fetp fetr fett ffee ffff ffrr fftf fode foed foer fofo food foof foot fopp for- ford fore foro forr fort fote foto fotp fott fpdt fprf fred free freo frep fret froe frop frot frpd fter ftop ftpe o-eo oddd oded odeo oder odet odoo odop odor odot odrp oedo oere ofdr ofer off- offe offo offr ofor ofre oftp ooer ooff oooo oord oore oort ootp oped opep oper opet opo- opor oppo opto orde ordo ore- ored oreo orer orfe orff oro- oroe orof oror orot orpe orro orte orto oted otee otep oter otfp oto- otoe otof otoo otor otpp otre otro otte otto pdpr ped- pede pedf pedo peed peep peer peet peff peor pepd pepe pepo per- perd pere perf pero perp perr pert pete peto petr pett pfet pfff pffr pfft pfte pod- podd pode podo poed poer poet poff pood poof poop poor poot pop- pope popo popp popt pore poro porr port potd pote potf poto pott pper ppod pppd pppo pppp pprf pptt pre- pred pree pref prep pret pro- prod proe prof proo prop prot prpd prrd prtp prtr pter ptop ptpd ptrd ptrf rder redd rede redo redr reed reef reep reet refd refe reff refr reft reod reof reop reot repe repo repp repr rept rerd rere rero rert retd rete reto retr rett rfef rodd rode rodo roed roer roet rofe roff rofo rood roof roop roor root rope ropo rore roro rort rote roto rotr rott rpdp rpet rpoe rpof rptd rred rrrr rtdt rtee rttp tdff tdor tedd tede teed teef teer teet teff teft teor tepe tepp ter- tere terf tero terp terr tete teto tetr tett tfot tfpt tftp todd tode todo todt toed toee toer toet toff tofo toft tood toof toor toot top- topd tope topf topo topp topt tord tore torf toro torp torr tort totd tote toto totr tott tpdf tped tper tppd tppp tppr tpte tptp tptr tre- tred tree tref treo tret trfd trfr trod troe troo trop trot trpe trpp trte trtr tteo tter ttff ttoe ttop tttt

-tree d-dot d-rod ddddd dedde dedee deder deede deefe deeff deepe deepp deere defed defeo defer defet deffe deffo defoe defot deore deoro depoe depop depor depot derde dered dero- derpt derre derro deter detoo detre dette do-do dodoo dodro doerr dofor doodo doore doote dopdf doped doper dopet doppe dordt dored doree doret dorff dorot dorpe dorre dorte doted doter dotoo dotto drdre dredd drede dreed dreep dreff dreft dreof drepe drere drode drofe droff drood droof droop drop- drope dropo dropt drote drott e-dee e-otd e-pro edder eddoe eddre edeo- edere edfor edoor edott edred eeeee eefde eeped eepee eerde efere efetf effed effer effet efore efter eofor eorre epode epopt epote eptfe erdor erdre erede erept erere erfde erode erodr eroor erore eroto erred error erte erter etete etoro etree etter fedde fedee feder fedor fedto feeor feere fefor feode feoff feood ferde fered feret ferr-