-ene -one -ose cccc cccp cccs ccee ccnc ccne ccnp ccnr ccns ccoc ccpe ccpn ccpp ccpr ccps ccrc ccre ccrp ccrs ccsn ccsp ccss cec- cece ceco cecp cecs ceec cees cen- cene ceno cens ceop ceor ceos cepc cepe cepo cepp cepr ceps cer- cerc cere cern cero cerp cers cesc cese cesp cesr cess cexe cnco cncp cnep cnes cnex cnrc cnrr cnss coce coco cocp coen coep coes coex con- conc cone conn cono cons coon coop coos cope copo copp copr cops cor- corc core corn coro corp corr cors cosc cose coso cosp coss coxe cpce cpcs cpep cper cpns cpos cpox cpps cpre cprs cpsc cpso cpsr cpsx crcc crce crcr cre- crec cree cren creo crep cres crex crne crns croc croe cron croo crop cror crpc crps crsp crss cscc csce csco cscr cscs csec csee csep cser csne csnp csor csos csox cspc cspe csps csrc csrs csse cssr cxpo cxro cxxx eccc ecce ecco eces ecne eco- econ ecop ecos ecpp ecrc ecrr ecsc ecse ecsp ecss eecs eeee eees eens eeoc eeps eerc eero eers eese ence enco encs enee eneo ener enes ennc enne enns eno- enoc enoe enon enos enp- enrs ense enso eoes eone eons eore epcc epec epee epen eper epes epns epoc epon epor epos epox eppc eppo eppp epps epro eprp eprs epsc epsp epss epsx epxp er-x ercc erce ercp erec eren erer eres erne erno erns eroc eroe eron eroo eros erpe erps errc erre erro errs erse erso esce esco escr escs esee esen eseo eser eses esne eso- esop esos esox espc espe espn espo espp esps esse esso essp exco exec exen exer exes exo- exon exor exos expn expo expr exrx nccc nccn nccp nccr nccs ncec ncee ncen ncep ncer nces ncnc ncoc ncor ncos ncpc ncrc ncre ncrp ncsc ncse ncss necc nece neco necr necs neen neep neer nees nene neno nens neo- neoc neon neoo neos neox nepc nepe nepr neps nerc nere nero nerr ners nesc nese nesn neso nesr ness nexe nexo nexx nnes nnnn nnos nnpr nnss noce noco nocs noer noes non- none nonn nono nons nonx noo- noon nooo noop noor noos nope nops nor- norc nore norn noro norr nors nos- nose noss npcc npes nppc npss nrcs nren nroc nron nrpc nrpn nrps nrrc nrsc nrsp nscc nscs nsec nsep nser nsnr nsos nspc nsps nsrc nssc nsse nsso nssp nssr nsss o-eo occc occn oce ocee ocon ocos ocpp ocre ocro ocrr ocrs oec- oecc oeec oen- oeno oens oeps oere oers oese onc- once onco one- onec onee oneo onep oner ones onex onne onno onon onor onos onsc onse onso oocr ooer ooes oone oons oooo ooos oops oore oose opec open opep oper opes opex opo- opon opor opos oppo opps orce orco orcs ore- orec oren oreo orer ores orex ornc orne orno orns oro- oroe oron oror oros orpc orpe orps orro orrs orse orso oscc osce osco osec osee osen oser oses osno osnr osoo osor osos osro osse osso oxen oxep oxer oxes oxo- oxon oxos oxox oxxo pccc pcce pccs pcep pcer pcns pcnx pcoe pcos pcpn pcpp pcps pcrc pcre pcse pcso pece peco pecr pecs peec peen peep peer pees pen- penc pene penn peno pens peon peor pepe pepo peps per- perc pere pern pero perp perr pers pese peso pess pnec pnes pnon pnpo pnpp pnro pnsc poce poco pocs poer poes ponc pone pono ponp pons poon poop poor poos pop- popc pope popo popp pops porc pore porn poro porr pors pose posn poso poss ppcc ppcs ppen pper ppos pppn pppo pppp ppps pprc ppss prcc prcp prcs pre- prec pree pren prep pres prex prnp pro- proc proe pron proo prop pros prox prps prrs prsc prse prso prss psco psec psnc psnr psoc pson psos pspp pspr psps psrp pssc psse psso pxes rccc rccs rcep rcnr rcon rcos rcpo rcps rcsc rcss recc rece recp recr recs reen reep rees rene renn reno rens reop reos repe repo repp repr reps rere rero rers rese resn reso resp ress rexx rnco rncp rncs rnsp rocc roce roco rocs roen roer roes ronc rone rono rons roon roop roor roos roox rope ropo rops rorc rore roro rosc rose roso rosp ross roxo rpcs rpoe rpon rpos rppn rpps rrrr rrsp rscc rscn rscs rsee rsnn rsno rsnr rsos rspo rsps rsre rxes s-os sccc scce sccp sccs scec scee scep scer scnr scon scoo scop scor scox scpe scpo scps scr- scrc scre scrn scrs scsc scsn scso scsr se-c se-e se-n se-o se-s se-x sec- secc sece secn seco secr secs seec seen seep seer sees seex sene senn seno senr sens seoc seon seop sepe sepn sepo sepp sepr seps sepx serc sere sern sero serp serr sers sesc sese seso sess sex- sexe sexp sncc snco sncp snee snep sner snes snns snoc snoo snop snor snos snpo snpp snrs soce soco socr socs socx soec soen soeo soep soes son- sone sono sons soon soop soor soos sope sopo sopp sops sore sorn soro sorr sors sose soso soss soxs spcc spco spcs spec spee spen sper spes spex spne spns spoc spon spoo spop spor spos spox spps spro sprs spse spso spsp spss srcc srec sreo sres srnn srno sros srpc srps srpx srsp sscc ssce sscp sscs ssec ssee ssep sses ssex ssns ssoc ssop sspc sspe sspo ssps sspx ssrc ssrs sssc ssss xces xcon xeer xen- xene xenn xeno xeon xer- xero xers xexe xnee xoco xorn xoro xorp xors xoxo xpcc xper xrep xson xxxo xxxx