ichu icpc icrc icre icrr icrt icru ictp icue icup iecc ieet ieie iere ieri iett ihcc ihep iher ihit ihrc ihre ihtc iiht iiie iiii iiit iirc iitr iitt iiuc ipcc ipce ipct ipec iper ipet iphc iphr ipie ippc ippq ippr ipri iptc ipur iput iqce iqer ique ircc ircu iree irer iri- iric irie irip irpc irpe irrc irre irri irte irti irtp itch itec itep iter itet ithc ithe itic itie itpc itri itup itur iucc iuce iuiu iupp pccc pcce pcep pcer pchp pcip pcpp pcrc pcre pcte pece pech peci pecq pecr pect peec peep peer peet pehe pehr peip peir peit pepe pepi per- perc pere perh peri perp perq perr pert peru pete peth peti petr pett peur peut phcc phe- phet phht phi- phip phit phrr phut picc pice pich pici picq picr pict picu piep pier piet piip pipe pipi pipp pirc pire piri pirr piru pite pith piti pitr pitt pitu ppcc ppci pper pphi ppic ppie ppih pppp pprc ppru pptt ppur pqcc prcc prcp pre- prec pree prep pret preu pri- prie prii prri prtc prti prtp prtr prue prut pruu ptcc pter pttc ptui pu-e puce puch puer puet pueu puhi puir puit puiu pupe pupi pupu pur- pure puri purp purr puru put- pute puth puti putt putu puuc qcue qeep qehi qeii qere qeri qerq qiru qpct qqqq qtch qtip qucu quee quep quer quet quh- quic quie quip quir quit quri qute quu- rccc rcep rcet rcic rcpi rcpt rctc rcti recc rece rech reci recp recr rect recu reep reet rehe rehi reht reii reir reit reiu repe repi repp repr rept repu rere reri rert reru rete reth reti retr rett reue reup reut reuu rhce rhcp rhee rhet rhue ricc rice rich rict riep rier riet rieu riht ripe ripi ripp ripr ript riqq rire riri rite rith riti ritt ritu riue rpet rpii rrrr rtcc rtce rtee rtei rttp ruce ruch ruci ruct ruer ruet ruhe ruhh ruhi ruhr ruit rupe rupp rupt rurc rure ruri rurp ruru rute ruth ruti rutt rutu tccc tccu tcep tch- tche tchh tchi tchp tchr tchu tctc tech tecr tect teec teer teet tehi tehr teic teie teip teir teiu tepe tepi tepp tepu ter- terc tere teri terp terr teru tete teth teti tetr tett tetu teut thch the- thec thee thei thep theq ther thet theu thhp thi- thic thie thiq thir thpp thre thri thru thtr thue thur ticc tice tich tie- tiee tiei tiep tier tiet tiht tihu tiit tiiu tip- tipc tipe tipi tipp tipt tipu tire tiri tirr tiru titc tite tith titi titp titt titu tpcp tper tpir tppp tppr tpte tptp tptr tput trcc tre- trec tree trei tret treu tri- tric trie trip trit trpc trpe trpp trtc trte trtr truc true trut truu ttcp tter tttt tucc tuch tuei tuer tuet tuht tuhu tuit tuiu tupe tuph tupi tupu turc ture turi turp turr turt turu tute tuti tutt tutu u-ie u-rp ucci uccp uche uchi ucph ucrc ucut ueir uepi uher uhti uhuh uhup uipi uirr upci upic upie uppc uppe uppp uppu upri upup uqcc uqhu urch urci ure- ureh uret uric urie uriu urre urrh urri urte urth urup uruq urur urut utec utep uter uthe utri utti uttu utuq uucp uuri uuuu

-tree c-p-c c-tec ccccc cccii ccett cciii ccitt cech ceche cechi cecht ceci- cecie cecri ceere ceipp ceirt cepci cepet cepic cepie cepii cequi cerc- cerce cerci cerec cerer ceret ceric cerie cerre certe cetic cette ceuti chech cheep cheer cheet chehr cheir cheit chepe chepi chere cheri cherp chert cheru chete cheth chett cheue chher chich chier chihe chir- chire chiri chirp chirr chirt chiru chiti chitu chric chueh chuet chupe chupi chupp chur- chure churi churr churt churu chute cicer ciceu ciche ciech cietc cipce ciper cippi cipre circe cireq ciric cirie cirr- cirri cirth citec citee citeh citer cithe citie citr- citte ciuti cpctc cpeir cphpc cpi-u crece creep creer crepe crept crepu crete cretu creu- creue creup crice crich crier cripe cript crith cruce crucq cruet crupe crure cruth cteep ctree ctrie ctrip cttee cucei cuche cuchi cucui cueup cuire cuite cuith cuper cupic cupr- curce curch curer curet curic curie curre curri curti curup cutch cutcu cutee cuter cuthe cuti- cutie cutit cutup e-qip ecchi eccup echte ecipe ecrit ecthr eeeee eepee eerie eetch eetti ehire ehret eiche eipic eipri eirie eitch eiter eithe eitri eperc epher epheu epice eppie epure equi- equip erech erect erept erere erice erich erier eriic erite erith eritu errtu erte erter erthe eruct erupt etche etchi etchu etete ether ethic etite etree etter ettie eturu eucip eucre euqip euric eurre h-tcp he-he heche hechi hecht hect- hecte hecup heeii heepe heere heete hehte heihe heire heith heiti heper hepet hepit hept- heqet herce herei heric herie herit herpt herre herte herth herti hertu herur herut hetch heter hethe hette hetup hetur heuch heuer heure heurt heute hheth hhhhh hi-hi hicht hichu hier- hieut hipec hiper hipp- hippe hippi hirch hiree hirer hiriq hirth hirur hitch hitec hithe hitit hitte hitup hrere hrrep hthrt htree httpr hu-pe hucch huche huere huete huhuh huihe huire hupeh hupei hupet huppe huqiu huquq hureh hurre hurri hurtt hurtu hurup hutch hutir hutit hutte huttu hutup huuru icche ice-t iceci iceit iceup ichec ichhi icici icier icter ictic iecee ieiri iepe ieper ierei iethe iette ihere ihite ihurt iiiee iiiii iitti iperu ipeti ipiti ippee ippei iqrit iquit ircii irece irete irite irrep irrit irtec irupi itete ithee ither itire itrip itter itthe ittre ittti itu-r itu-t ituri ituru itutu iuchi iuput iurie p-rep pcepi pcept pcert pci-e pctct peche peece peere peeri peert peete peeth peice peich peire peirt pepee peppe peppi pept- pepup peque perce perch perci perec perer peret peri- peric perie perit perre perri perte perth perti peruc perur petch petcu peter petie petit petr- petre