ppcc ppcd ppen pper ppod pppd pppn pppo pppp pprc ppru pptn pptt ppur prcc prcd prcp pre- prec pred pree pren prep pret preu prnd prnp pro- proc prod proe pron proo prop prot prou prpd prrd prtc prtp prtr prud prue prut pruu ptcc ptdc pten pter ptop ptpd ptrd pttc pu-e puce pudo pudu pued pueo puer puet pueu punc pund pune puno punt punu pupe pupu pur- pure puro purp purr puru put- pute puto putt putu puuc rccc rcdc rcde rcep rcet rcnr rcon rcpd rcpo rcpt rcrd rctc rder rdoc rdpc recc recd rece recp recr rect recu redc redd rede redo redr redu reed reen reep reet rend rene renn reno rent renu reod reop reot reou repe repo repp repr rept repu rerd rere rero rert reru retd rete reto retr rett reue reup reut reuu rnco rncp rndc rndp rnnt rnod rnot rntd rntp rnut rocc roce roco rodd rode rodo roed roen roer roet ronc rond rone rono ront rood roon roop roor root rope ropo rorc rore roro rort roru rotc rote rotn roto rotr rott roud roue roun roup rout rpdp rpet rpoe rpon rppn rptd rptn rred rrrr rrun rtcc rtce rtdt rtee rtnd rttp ruce ruct rudd rude rudo rudp rued ruen ruer ruet runc rund rune runn runo runt rupe rupp rupt rurc rurd rure ruro rurp ruru rute ruto rutt rutu ruud ruun tccc tccu tcdd tcep tcnn tcon tcpo tctc tdor teco tecr tect tedd tede teec teed teen teer teet tenc tend tene tenn teno tenp tent tenu teon teor tepe tepp tepu ter- terc tere tern tero terp terr teru tete teto tetr tett tetu teut tncc tndd tnut toce toco todd tode todo todt todu toed toee toen toer toet tone tonn tono tonu tood toon toor toot top- topd tope topo topp topt topu torc tord tore torn toro torp torr tort toru totc totd tote toto totr tott toun toup tour tout tpcd tpcp tpdu tped tper tpon tppd tppp tppr tpte tptp tptr tput trcc tre- trec tred tree tren treo tret treu trno troc trod troe tron troo trop trot trou trpc trpe trpn trpp trtc trte trtr truc trud true trun trut truu ttcn ttcp tten tteo tter ttoe tton ttop tttt tucc tuco tude tudu tuen tuer tuet tunc tund tune tunn tuno tunu tuor tupe tupo tupu turc turd ture turn turo turp turr turt turu tute tuto tutt tutu tuuo u-rp uccp ucdc ucdd ucon ucrc ucut uden uder udet udon udoo udop udot udpd udun uend ueno uncc unce unco uncp unct unde undo unec uned unee unen uner unne unno unon unop unpc unro unte unto unut uocc uone uor- uore updo uped upen upne upnp upon upor uppc uppe uppp uppu upto upup urde urdu ure- ured uret urne uro- uroo urpo urre urte urun urup urur urut utec utep uter utne utor utpd utto uttu uucp uuen uuno uuoc uuuu