-ene -one c-cd cccc cccp ccdc ccdn ccdp ccdr cced ccee ccnc ccne ccnp ccnr ccoc ccod ccpe ccpn ccpp ccpr ccrc ccre ccrp cd-e cd-r cddr cdec cder cdnc cdon cdre cec- cece ceco cecp cedd cede cedo ceec cen- cend cene ceno ceop ceor cepc cepe cepo cepp cepr cer- cerc cerd cere cern cero cerp cnco cncp cndd cndp cnep cnrc cnrr coce coco cocp codd code coed coen coep con- conc cond cone conn cono cood coon coop copd cope copo copp copr cor- corc cord core corn coro corp corr cpce cpep cper cppd cpre crcc crce crcr crdc cre- crec cred cree cren creo crep crne croc crod croe cron croo crop cror crpc dccc dccp dcon dcop dcpo dddd ddoc ddpo ddrc ddre dec- decc decd dece deco dedd dede dedo deed deen deep deer dene denn deno deon deop deor depc depe depo depp depr der- derc dere dern dero derp derr dnce dner dnoc dnpo dnrc doce doco dod- dodd dode dodo doen doer donc dond done donn dono donp donr dood doon doop door dope dopo dopp dopr dorc dord dore dorn doro dorp dorr dpcp dper dppc dred dree dren drno drod dron drop eccc ecce ecco ecdc eced ecne eco- ecod econ ecop ecpd ecpp ecrc ecrr eddc edde eddo eddp ede- eden eder edno edoc edod edon edrn eede eeee eend eeoc eerc eero ence enco end- ende endo ened enee eneo ener ennc enne eno- enoc enoe enon enp- eocd eode eone eore epcc epec epee epen eper epoc epod epon epor eppc eppo eppp epro eprp ercc erce ercp erde erec ered eren erer erne erno eroc erod eroe eron eroo erpe errc erre erro nccc nccn nccp nccr ncdc ncdn ncdr ncec nced ncee ncen ncep ncer ncnc ncnd ncoc ncor ncpc ncrc ncre ncrp ndcc ndcp ndde nddo nder ndnp ndoc ndop ndor ndpd ndpr ndrc ndre necc nece neco necr nedc nedd nede nedo need neen neep neer nend nene neno neo- neoc neod neon neoo nepc nepe nepr nerc nerd nere nero nerr nnnn nnpr noce noco node nodo noed noer non- none nonn nono noo- noon nooo noop noor nope nor- norc nord nore norn noro norr npcc nppc nppd nrdc nren nroc nron nrpc nrpn nrrc nrrd o-eo occc occn oce oced ocee ocon ocpd ocpp ocre ocro ocrr oddd oded oden odeo oder odon odoo odop odor odrp oec- oecc oedn oedo oeec oen- oeno oere onc- oncd once onco onde ondo one- onec oned onee oneo onep oner onne onno onod onon onor oocr ooer oone oooo oord oore opec oped open opep oper opo- opon opor oppo orce orco orde ordn ordo ore- orec ored oren oreo orer ornc orne orno oro- oroe oron oror orpc orpe orro pccc pcce pcep pcer pcod pcoe pcpn pcpp pcrc pcrd pcre pdcp pdoc pdpn pdpr pdrc pece peco pecr ped- pede pedo peec peed peen peep peer pen- penc pend pene penn peno peon peor pepd pepe pepo per- perc perd pere pern pero perp perr pnec pnon pnpo pnpp pnro pocd poce poco pod- podd pode podo poed poer ponc pond pone pono ponp pood poon poop poor pop- popc pope popo popp porc pore porn poro porr ppcc ppcd ppen pper ppod pppd pppn pppo pppp pprc prcc prcd prcp pre- prec pred pree pren prep prnd prnp pro- proc prod proe pron proo prop prpd prrd rccc rcdc rcde rcep rcnr rcon rcpd rcpo rcrd rder rdoc rdpc recc recd rece recp recr redc redd rede redo redr reed reen reep rend rene renn reno reod reop repe repo repp repr rerd rere rero rnco rncp rndc rndp rnod rocc roce roco rodd rode rodo roed roen roer ronc rond rone rono rood roon roop roor rope ropo rorc rore roro rpdp rpoe rpon rppn rred rrrr