-ene -one cccc cccv ccee ccgc ccnc ccne ccnr ccoc ccrc ccre ccrg ccvo cec- cece ceco ceec cege cego cen- cene ceng ceno ceor cer- cerc cere cern cero cevo cgcc cgcg cger cgro cnco cnrc cnrr coce coco coen cogo con- conc cone cong conn cono conv coon cor- corc core corg corn coro corr cove covo crcc crce crcr cre- crec cree creg cren creo crne croc croe cron croo cror cvcc cven cver cvrg cvrr eccc ecce ecco ecne eco- ecog econ ecrc ecrr ecrv eeee eeng eeoc eerc eerg eero eevn egcc egcg egcr egec egee eger egge eggo egne egnv ego- egon egor egov egre egvn en-v ence enco enee eneg eneo ener enge engg engo engr ennc enne eno- enoc enoe enon eone eore ercc erce erec eren erer erev erg- ergg ergo erne erno eroc eroe eron eroo errc erre erro erve even ever evng evoe evon evoo evre gc-c gccc gcov gcrg gece geen geer gege gegg gego gen- genc gene geng genn geno geo- geog geon gere gern gero geve gevo gggg ggrn gncc gngc gnoo gnrc gnrr goce gocr goen goer gogo gon- gone gong gonn gono goog goon goor gore gorg gorn goro gorr gove grcc grce grec gree greg gren grev groc grog gron groo gror grov grrr grve gvvv nccc nccn nccr ncec ncee ncen ncer ncgr ncnc ncoc ncor ncrc ncre necc nece neco necr neen neer neev nege nego nene neng neno neo- neoc neon neoo nerc nere nero nerr nerv neve nevo ngen nger ngon ngor nngn nnnn noce noco noer nogg nogo non- none nong nonn nono noo- noon nooo noor noov nor- norc nore norg norn noro norr norv nov- nove novo nren nroc nron nrrc nvcc o-eo occc occn oce ocee ocon ocre ocro ocrr oec- oecc oeec oen- oeno oere ogee ogen oger ogge ogog ogon ogre ogro onc- once onco one- onec onee oneg oneo oner onge ongo onne onno onon onor oocr ooer oone oooo oore orce orco ore- orec oreg oren oreo orer orge orgn orgo ornc orne orno oro- oroe oron oror orro orve orvr ovee oven over ovo- ovon ovoo ovre rccc rcgc rcnr rcon rcrg rcvr recc rece recr reen reev rege regn rego regr rene reng renn reno reog rere rerg rero reve revo rnco rocc roce roco roeg roen roer roev roge rogg rogo ronc rone rong rono roog roon roor rorc rore roro rove rovo rrrr rv-c rver vcon vecc veen veer vege ven- vene veng venn veno veor ver- vere vern vero veve vevo vgcc voce voer voge vone vonn vooc voog voor vor- vore voro vreo vrnn vroc vron vver vvog vvvv