nntn npcc npic npif npin nppc npri nprt nptc npte nptn nren nrfc nric nrpc nrpn nrrc ntcc nter nteu ntfc ntfp ntnu ntpc ntrc ntru nttr ntuc ntui nuce nuci nucu nuee nuer nuff nuin nuit nunc nune nung nunn nunt nupe nurc nure nuri nurn nurp nurr nurt nuru nute nutt nutu pccc pcce pcep pcer pcfc pcgg pcin pcip pcnt pcpn pcpp pcrc pcre pcrf pcte pcun pece peci pecr pect peec peen peep peer peet pefc peff pegg pegu pein peip peir peit pen- penc pene peng peni penn pent penu pepe pepi per- perc pere perf perg peri pern perp perr pert peru pete peti petn petr pett peun peur peut pfce pfet pfff pffr pfft pfic pfit pfte pfui pgcc pgce pger pgpu pgrc pgup picc pice pici picr pict picu pien piep pier piet piff pigc pigf pigg pign pigp pigt pigu piip pinc pine ping pini pinn pinp pint pinu pipe pipi pipp pirc pire pirg piri pirn pirr piru pite pitf piti pitr pitt pitu pnec pnet pneu pnic pnin pnpp pntr pnup ppcc ppci ppen pper ppgi ppic ppie ppif ppig pppn pppp pprc pprf ppru pptn pptt ppur prcc prcf prcp pre- prec pree pref preg pren prep pret preu prfc pri- prie prif prig prii prin prnp prri prtc prti prtp prtr prue pruf prut pruu ptcc pten pter ptrf pttc ptui pu-e puce puer puet pueu puff puft pugu puig puin puir puit puiu punc pune pung punt punu pupe pupi pupu pur- pure purg puri purp purr puru put- pute puti putt putu puuc rccc rcep rcet rcfc rcgc rcic rcnr rcpi rcpt rcrg rctc rctg rcti recc rece reci recp recr rect recu reef reen reep reet refe reff refg refi refn refr reft refu rege regi regn regr regt regu reif reii rein reir reit reiu rene reng reni renn rent renu repe repi repp repr rept repu rere rerg reri rert reru rete reti retr rett reue reuf reup reut reuu rfef rffc rfic rftc rgit rgtr ricc rice rict rief rien riep rier riet rieu rife riff rift rifu rige rigg rigi rigu riif riin rine rinf ring rinn ripe ripi ripp ripr ript rire riri rite riti ritt ritu riue rncp rnie rnin rnnt rntp rnut rpet rpfc rpii rppn rptn rrfc rrif rrrr rrun rtcc rtce rtcg rtee rtei rtfc rttp ruce ruci ruct ruen ruer ruet rufc rufe ruff ruft ruge rugg rugi ruif ruin ruit runc rune runf rung runi runn runt rupe rupp rupt rurc rure ruri rurp ruru rute ruti rutt rutu ruun tccc tccu tcep tcfc tcfg tcnn tctc tecr tect teec teef teen teer teet tefc teff tefi teft tegg tegi tegt tegu teic teie tein teip teir teiu tenc tene teng teni tenn tenp tent tenu tepe tepi tepp tepu ter- terc tere terf teri tern terp terr teru tete teti tetr tett tetu teut tfcu tfec tfin tfnp tfpt tftc tftp tgcc tgif tgtc ticc tice tie- tiee tief tiei tien tiep tier tiet tiff tift tige tigi tigr tiit tiiu tinc tine ting tini tinn tint tinu tip- tipc tipe tipi tipp tipt tipu tire tiri tirr tiru titc tite titi titp titt titu tncc tnef tnfc tnge tnut tpcp tpeg tper tpir tppp tppr tpte tptp tptr tput trcc tre- trec tree tref treg trei tren tret treu trfc trfr trge tri- tric trie trif trig trin trip trit trng trpc trpe trpg trpn trpp trtc trte trtr truc true trug trun trut truu ttcn ttcp tten tter ttfc ttff ttfn tttt tucc tuei tuen tuer tuet tufc tufe tuff tufi tuft tufu tugg tugu tuig tuin tuit tuiu tunc tune tung tuni tunn tunu tupe tupi tupu turc ture turf turg turi turn turp turr turt turu tute tuti tutt tutu u-ie u-rp ucci uccp ucin ucrc ucut uein ueir uepi ufcu ufer uffe ufip uftp ugcc ugcg ugep uggt ugne ugni ugri ugur uguu uige uint uipi uirr uncc unce uncf uncg unci uncp unct unec unee unef unen uner unfp ungp ungu uni- unic unie unif unii unin unir unit unne unni unpc unrf unte unut upci upen upic upie upin upne upnp uppc uppe uppp uppu upri upup urci ure- uret urfe urff urfi urft urge urgi urgu uric urie urif urin uriu urne urni urre urri urte urun urup urur urut utec utep uter utin utne utri utti uttu utug uucp uuen uuni uuri uutf uuuu

-tree c-p-c c-tec ccccc cccii ccett ccifc cciii ccing ccitt ccnet ceci- cecie cecri cecun ceene ceere cefcu cegep cegge cegne cegui ceint ceipp ceirt cence cenci cenei ceneu cenpf cenpi cenpn cenpt cent- centi centr cepci cepet cepic cepie cepii cerc- cerce cerci cerec ceren cerer ceret cerge ceric cerie cerin cerne cerre certe ceten cetic cetin cette cetun ceuti cfu-e cicer ciceu cient cietc cifer cifft cifte cinct cincu cine- cinii cinit cinti cipce ciper cippi cipre circe cirge ciric cirie cirr- cirri citec citee citer citie citr- citte ciuti cneru cnnfn cnnnn cntrc cpcfc cpctc cpeir cpi-u crece creen creep creer creft cregg cren- crepe crept crepu crete cretu creu- creue creup crice crier crine crini cripe cript crnce crnci crnec crner crnic cruce cruet crufe cruft cruif cruin crune crunt crupe crure cteep cten- ctene ctree ctrie ctrip cttee cucei cucui cuein cueup cufeu cuffe cufic cufre cugir cuing cuire cuite cunei cunge cunic cunig cunin cunit cunne cunt- cunut cuper cupic cupr- curce curer curet curic curie curig curre curri curti curug curup cutcu cutee cuter cuti- cutie cutin cutit cutup e-fit e-gif e-ten eccen eccup eceni ecipe ecrit ectfe eeeee eence eener eenet eenie eepee eerie eeten eetti ef-tu efere eferi efetf effer effet effie effin efnet efrei efren eften efter efuru efutu egene eggen egger eggie eggig eggng egini egner egret eigen eiger eigne einen einer einig einin eipic eipri eirie eirin eiter eitri encge encre encup encur enent enete eneti enfce