iofc iogt ioii ioio ioit ioof iooi iooo iore iorg iori iote iotf ioto ipcc ipce ipct ipec iper ipet ipfc iphc iphr ipie ipoe ipoh ipop ippc ippf ippo ippr ipri iptc ipto ircc ircg iree irer irfe iri- iric irie irig irio irip iroc iroh irop irpc irpe irrc irre irri irte irtf irti irtp itch itec itep iter itet itgc itgo ithc ithe itic itie itif itof itoh itoi itoo itor itpc itrf itri ittf itto o-eo occc occi occt oce ocee ocef ocet ocfp oche ochi ocht ocpp ocre ocro ocrr oct- octe octi octo oec- oecc oeec oere oeti ofcr ofer off- offc offe offh offo offr ofgo ofit ofor ofre oftp ogee oger ogfr ogge oggi oghi oght ogog ogoi ogre ogri ogro ohcc ohee oher ohgr ohhi ohho ohif ohio ohoh ohre ohte ohto oici oier oigo oiii oipc oire oirt oitc oiti oocr ooer ooff ooho oooh oooo oore oort ootp opec opei opep oper opet ophi opic opie opii opio opit opo- opor oppi oppo opti opto orce orch orci orco ore- orec oreg oreh oreo orer orfe orff orfi orge orgo orhe ori- oric orie orif orig orio orit oro- oroe orof oror orot orpc orpe orph orpi orri orro ortc orte orth orto otee otep oter otfc otfp othe otho othr otic otif otit oto- otoe otof otog otoh otoo otor otpp otre otro otte otti otto pccc pcce pcep pcer pcfc pcgg pchp pcip pcoe pcpp pcrc pcre pcrf pcte pece pech peci peco pecr pect peec peep peer peet pefc peff pegg pegh pego pehe peho pehr peio peip peir peit peor pepe pepi pepo per- perc pere perf perg perh peri pero perp perr pert pete peth peti peto petr pett pfce pfet pfff pffr pfft pfic pfit pfte pgcc pgce pger pgrc phcc phe- phet phht phi- phip phit phog phoh phoo phot phrr picc pice pich pici pico picr pict piep pier piet piff pigc pigf pigg pigh pigo pigp pigt piip piot pipe pipi pipo pipp pirc pire pirg piri piro pirr pite pitf pith piti pito pitr pitt poce poch poco poer poet poff pofi poge pogg pogh pogo poio poof pooh poop poor poot pop- popc pope popi popo popp popt porc pore porg pori poro porr port potc pote potf poth poti poto pott ppcc ppci pper ppgi pphi ppic ppie ppif ppig ppih pppo pppp pprc pprf pptt prcc prcf prcp pre- prec pree pref preg prep pret prfc pri- prie prif prig prii pro- proc proe prof prog proo prop prot prri prtc prti prtp prtr ptcc pter ptop ptrf pttc rccc rcep rcet rcfc rcgc rcic rcpi rcpo rcpt rcrg rctc rctg rcti recc rece rech reci recp recr rect reef reep reet refe reff refg refi refr reft rege regi rego regr regt rehe rehi reht reif reii reir reit reof reog reop reot repe repi repo repp repr rept rere rerg reri rero rert rete reth reti reto retr rett rfef rffc rfic rftc rgit rgtr rhce rhcg rhcp rhee rheo rhet rhio rhoc rhog rhoh ricc rice rich rico rict rief riep rier riet rife riff rift rige rigg righ rigi rigo riho riht riif riot ripe ripi ripp ripr ript rire riri rite rith riti rito ritt rocc roce roch roco roeg roer roet rofc rofe roff rofo roge rogg rogh rogi rogo rohe rohr roif roig roio roir roit roof roog rooi roop roor root rope ropo rorc rore rori roro rort rotc rote rotg roth roti roto rotr rott rpet rpfc rpho rpii rpoe rpof rrfc rrif rrrr rtcc rtce rtcg rtee rtei rtfc rttp tccc tcep tcfc tcfg tch- tche tchh tchi tcho tchp tchr tcpo tctc tech teco tecr tect teec teef teer teet tefc teff tefi teft tegg tegh tegi tego tegt tehi teho tehr teic teie teip teir teoh teor tepe tepi tepp ter- terc tere terf teri tero terp terr tete teth teti teto tetr tett tfec tfot tfpt tftc tftp tgcc tgif tgtc thch the- thec thee thef thei theo thep ther thet thhp thi- thic thie thif thig thio thir thoe thof thog thoo thor thot thpp thre thri thro thtr ticc tice tich tico tie- tiee tief tiei tieo tiep tier tiet tiff tifo tift tige tigh tigi tigr tiht tiit tiop tip- tipc tipe tipi tipo tipp tipt tire tiri tiro tirr titc tite tith titi tito titp titt toce toch toci toco toee toeh toei toer toet toff tofi tofo toft toge togh togo togr togt tohi toho toie toit toof tooh toor toot top- tope topf toph topi topo topp topt torc tore torf torg tori toro torp torr tort totc tote toth toti toto totr tott tpcp tpeg tper tpir tppp tppr tpte tptp tptr trcc tre- trec tree tref treg trei treo tret trfc trfr trge tri- tric trie trif trig trio trip trit troc troe trog troi troo trop trot trpc trpe trpg trpp trtc trte trtr ttcp tteo tter ttfc ttff ttoe ttop tttt

-tree c-cor c-p-c c-pop c-tec ccccc cccii ccett ccifc cciii ccitt cech ceche cechi cecht ceci- cecie ceco- cecri ceere cefor cegep cegge ceipp ceirt ceoce ceoor cepci cepet cepic cepie cepii cepot ceppo cerc- cerce cerci cerco cerec cerer ceret cerge ceric cerie cerio cero- ceroc cerre cerro certe cetic ceto- cette cfhof chech cheep cheer cheet chefe cheff chege chegg chego cheho chehr cheif cheir cheit cheo chepe chepi chepo chere cheri chero cherp chert chete cheth cheto chett chgrp chher chich chico chief chier chigi chihe chiho chio- chiot chir- chire chiri chiro chirp chirr chirt chiti chito choco choei choff choge choir choof choop choor chope chopi chopt chor- chore choro chort chote choti chott chric cicer ciche cicho ciech ciego cietc cifer cifft cifte ciope cipce cipco ciper cippi cipre cipro circe circo cirge ciric cirie cirio cirr- cirri cirro cirth citec citee citeh citer citgo cithe