eyyr o-eo occc occt oce ocee ocet ocos ocpp ocre ocro ocrr ocrs oct- octe octo octs octy ocys oec- oecc oeec oeps oere oers oese oest oeye oeyo oocr ooer ooes oooo ooos oops oore oort oory oose oost ootp oots ooty opec opep oper opes opet opex opo- opor opos oppo opps oppy opry opsy opto opts opye orce orco orcs ore- orec oreo orer ores orex orey oro- oroe oror oros orot oroy orpc orpe orps orro orrs orry orse orso orsy ortc orte orto orts orys oryx oscc osce osco osec osee oser oses oset osey osoo osor osos osro osse osso ossy ostc oste ostr osts osyp osyt otee otep oter otes oto- otoe otoo otor otos otoy otpp otre otro otrs otry otse otso otte otto otts otyr oxep oxer oxes oxo- oxos oxox oxxo oxy- oyce oyee oyer oyes oyre oyse oyss oyst pccc pcce pccs pcep pcer pcoe pcos pcpp pcps pcrc pcre pcse pcso pcte pcts pece peco pecr pecs pect pecy peec peep peer pees peet peor pepe pepo peps per- perc pere pero perp perr pers pert pery pese peso pess pest pesy pete peto petr pets pett pety peyo peyr peys poce poco pocs poer poes poet poey poop poor poos poot pop- popc pope popo popp pops popt popy porc pore poro porr pors port pory pose poso poss post posy potc pote poto pots pott poty poxy poyo poyr poys ppcc ppcs pper ppos pppo pppp ppps pprc ppss ppts pptt ppye prcc prcp prcs pre- prec pree prep pres pret prex prey pro- proc proe proo prop pros prot prox prps prrs prsc prse prso prss prtc prtp prtr prys psco psec psoc psos pspp pspr psps psrp pssc psse psso psst psts psy- psys ptcc pter ptop ptox pttc pxes pyce pyep pyes pyet pyo- pyos pyot pype pypy pyr- pyre pyro pyry pyse pyss pyst pyte pytt rccc rccs rcep rcet rcos rcpo rcps rcpt rcsc rcss rctc rcts rcyc recc rece recp recr recs rect recy reep rees reet reop reos reot repe repo repp repr reps rept repy rere rero rers rert rery rese reso resp ress rest rete reto retr rets rett rety rexx reye reys rocc roce roco rocs roer roes roet roey roop roor roos root roox rope ropo rops ropy rorc rore roro rort rory rosc rose roso rosp ross rost rosy rotc rote roto rotr rots rott roty roxo roxy roye roys royt rpcs rpet rpoe rpos rpps rpts rpyc rrrr rrsp rscc rscs rscy rsee rsos rspo rsps rsre rstp rsts rtcc rtce rtee rtes rtex rtps rtss rttp rtts rxes ryes ryet ryot rype rysy rytt ryyt s-os sccc scce sccp sccs scct sccy scec scee scep scer scet scey scoo scop scor scot scox scpe scpo scps scpt scr- scrc scre scrs scry scsc scso scsr scst sctc scto sctr scts scye se-c se-e se-o se-s se-t se-x se-y sec- secc sece seco secr secs sect secy seec seep seer sees seet seex seey seoc seop sepe sepo sepp sepr seps sept sepx serc sere sero serp serr sers sert sery sesc sese seso sess sest set- setc sete seto sets sett setx sex- sexe sexp sext sexy seye seys seyt soce soco socr socs socx socy soec soeo soep soes soop soor soos soot sooy sope sopo sopp sops sopy sore soro sorr sors sort sory sose soso soss sost sotc sote soto sotp sots soxs soye soyo soys soyt spcc spco spcs spec spee sper spes spet spex spey spoc spoo spop spor spos spot spox spoy spps spro sprs spry spse spso spsp spss spst sptc spto sptr spts spy- spyr spys srcc srct srec sreo sres sros srpc srps srpt srpx srsp srtp srtr sscc ssce sscp sscs ssec ssee ssep sses sset ssex ssoc ssop ssot sspc sspe sspo ssps sspt sspx ssrc ssrs sssc ssss sstc sstp ssts stcc stcp stcs stec stee steo step ster stes stet stex stey stoe stoo stop stor stos stot stox stoy stpp stps strc stre stro strs stry stss sttc sttr stye styr stys styx syce syco sycr syer syes sype sypo syre syro syrs syrt syry syse syso syss syst syte sytt syxe syxt tccc tcep tcos tcpo tcpy tctc tcts teco tecr tecs tect teec teer tees teet teor teos tepe tepp ter- terc tere tero terp terr ters tery tesc tese teso tesp tess test tete teto tetr tets tett tetx text teye teyr teys to-y toce toco toee toer toes toet toey toor toos toot top- tope topo topp tops topt torc tore toro torp torr tors tort torx tory tosc tose toso toss tost tosx tosy totc tote toto totr tots tott toty tox- toxo toxs toxt toyo toys toyt tpcp tpcs tper tppp tppr tprs tpsc tpte tptp tptr tpyo trcc tre- trec tree treo tres tret trex trey troc troe troo trop tros trot trox troy trpc trpe trpp trps trst trtc trte trtr try- trye tryo tryp trys tscc tscp tsec tses tset tsey tsop tsos tsoy tspo tsps tspt tsse tssr tsst tstc tsts tsys ttcp tteo tter ttoe ttop ttoy ttss tttt ttys txtr tyce tyco tyee tyer tyes tyet typ- type typo typp typy tyr- tyre tyro tyrr tyse tyss tyst tyte tyto tytt tyty tyxt xces xeer xer- xero xers xert xexe xoco xoro xorp xors xote xoxo xoyo xpcc xper xpot xpto xrep xtep xtro xtry xtsr xxxo xxxx xxxy xyr- xyst yccc ycee yctc yeep yeer yees yeet yeos yeot yeox yepe yepp yeps yere yero yerr yers yert yery yeso yess yest yete yeto yets yett yext yeye yeyo yeyr yoop yoot yopo yopy yore yoro yort yory yoso yost yote yott yoxe yoye yoyo ypcc ysco ysee yser yses yset ysop ysse ytre yyyy

-tree c-cor c-p-c c-pop c-tec ccccc ccett ccoyo ceco- cecos cecyt ceere ceese ceoce ceoor ceose cepes cepet cepos cepot