-er -up ddd dde ddf ddp ddr ddt ddu de- ded dee def dep der det deu dfd dfe dff dfp dfr dft dfu dpd dpe dpf dpp dpr dpt dpu drd dre drp drr drt dru dtd dte dtf dtp dtr dtt dtu dud due duf dup dur dut ed- edd ede edf edp edr edt edu eed eee eef eep eer eet ef- efd efe eff efp efr eft ep- epd epe epf epp epr ept epu erd ere erf erp err ert eru etd ete etf etp etr ett etu eu- eud eue euf eup eur eut fdd fde fdf fdp fdr fdt fdu fed fee fef fep fer fet feu ffd ffe fff ffp ffr fft ffu fpd fpe fpp fpr fpt fpu frd fre frf frp frr frt fru ftd fte ftf ftp ftr ftt ftu fud fue fuf fup fur fut fuu p-p pdd pde pdf pdp pdr pdt pdu ped pee pef pep per pet peu pfd pfe pff pfp pfr pft pfu ppd ppe ppf ppp ppr ppt ppu prd pre prf prp prr prt pru pt- ptd pte ptf ptp ptr ptt ptu pud pue puf pup pur put puu rdd rde rdf rdp rdr rdt rdu re- red ree ref rep rer ret reu rfd rfe rff rfp rfr rft rfu rpd rpe rpf rpp rpr rpt rpu rrd rrf rrp rrr rrt rru rtd rte rtf rtp rtr rtt rtu rud rue ruf rup rur rut ruu tdd tde tdf tdp tdr tdt tdu te- ted tee tef tep ter tet teu tfd tfe tff tfp tfr tft tfu tpd tpe tpf tpp tpr tpt tpu trd tre trf trp trr trt tru ttd tte ttf ttp ttr ttt ttu tud tue tuf tup tur tut tuu udd ude udf udp udr udt udu ued uee uef uep uer uet ufd ufe uff ufp ufr uft ufu up- upd upe upf upp upr upt upu ur- urd ure urf urp urr urt uru utd ute utf utp utr utt utu uue uur uut uuu

dddd ddre dedd dede dedu deed deef deep deer deet defe deff deft depe depp depr dept der- dere derf derp derr dete detr deue deur deut dfdt dfer dfrf dftr dpdt dper dred dree dref dret drue drup drut druu dtdp dted dttp dudd dude dudu duer duet duff dufu dupe dure durt duru dute dutp duur duut edde eddp ede- eder edfu edru edup edur eede eedu eeee eefe eete eetu efet eft- eftp eftu epee eper eppp eprp epte erde erdf ered erer eret erft erpe erre ertu erur etee eter etfe etre ette ettu eude euer eur- eure eurt fede feed feer feet fefe feff ferd fere ferr fert feru fete fetp fetr fett fetu feud ffee ffff ffrr fftf fpdt fprf fred free frep fret frpd frue fter ftpe fudd fude fuet fuff fufu fur- fure furr furt fute futu pdpr ped- pede pedf peed peep peer peet peff pepd pepe per- perd pere perf perp perr pert peru pete petr pett peur peut pfet pfff pffr pfft pfte pper pppd pppp pprf ppru pptt ppur pre- pred pree pref prep pret preu prpd prrd prtp prtr prud prue pruf prut pruu pter ptpd ptrd ptrf pu-e pudu pued puer puet pueu puff puft pupe pupu pur- pure purp purr puru put- pute putt putu rder redd rede redr redu reed reef reep reet refd refe reff refr reft refu repe repp repr rept repu rerd rere rert reru retd rete retr rett reue reuf reup reut reuu rfef rpdp rpet rptd rred rrrr rtdt rtee rttp rudd rude rudp rued ruer ruet rufe ruff ruft rupe rupp rupt rurd rure rurp ruru rute rutt rutu ruud tdff tedd tede teed teef teer teet teff teft tepe tepp tepu ter- tere terf terp terr teru tete tetr tett tetu teut tfpt tftp tpdf tpdu tped tper tppd tppp tppr tpte tptp tptr tput tre- tred tree tref tret treu trfd trfr trpe trpp trte trtr trud true trut truu tter ttff tttt tude tudu tuer tuet tufe tuff tuft tufu tupe tupu turd ture turf turp turr turt turu tute tutt tutu u-rp uder udet udpd ufer uffe uftp updf uped uppe uppp uppu upup urde urdu ure- ured uret urfe urff urft urre urte urup urur urut utep uter utpd uttu uutf uuuu

-tree ddddd dedde dedee deder dedur dedut deede deefe deeff deepe deepp deepu deere defed defer defet deffe depue derde dered derpt derre derue deter detre dette detur deure deut- drdre dredd drede dreed dreep dreff dreft drepe drere drude drupe duded duder duere duerr duete duett dueup dufur duped duper dured duree durer duret durre durte durtu dutte e-dee edder eddre edere edred eeeee eefde eeped eepee eerde ef-tu efere efetf effed effer effet efter efuru efutu eptfe epure erdre erdut erede erept erere erfde erred errtu erte erter erupt etete etree etter etude eturu eurre fedde fedee feder fedup feere ferde fered feret ferr- ferre ferte feted feter fette feued feuer feute frede freed freep freer freet frere frett freud freur frude frute ftrtt fu-fu fudde fuddu furde furud futur p-rep pedee peedu peere peert peete pepee peppe pept- pepup perde perdu perer peret perre perte perur peter petr- petre petru pette petur peude peure prede preef preff prepd prete prude prute pter- ptere ptprd ptpre ptprf ptprr ptprt ptpru pudde puder pudur puett pupet puppe pured puree purer purre purte puter putre putt- putte puttu putup re-up redde reder redup redur reede reefe reeft reepe reere refed refer refet reffe refut repet reppe reprt reptd reput rerde rere- reree reret reted retee reter rette reuer reuet reute rperf ruder ruede ruere ruete ruffe rupee ruper rurde ruter rutte ruutu tedef teder teepe teerd teeup tefe tepee tepet tepeu teppu teret tereu terre tert- teter tetr- tette treed treer treet trefe treff trepp trept trere trete trett treut trude trued truer truff trupt trute