c-one c-p-c c-pop ccccc ceco- cecon ceene cence ceno- cenon cenpf cenpn cenpo ceoce cepno ceppo cnnfn cnnnn co-co co-np co-op cocc- cocce cocco coceo cocon coen- coepe coffe conco conne cono- conon conop cooee coone coope copce copec copen coppe coppo cpcfc e-one eccen ecoff econo eeeee eence eepee eneco enfce enone enope enpo eofen epeen epene epone fence fenne fenno fenoe feoff fonne foone fopen n-p-n nconf necco neece nefco nefen neffe nenno neofe neope neppe nnfcc nnooo no-no no-op nofee nonce nonne nonno nonop nonpc noone nopep noppe oceno ocoee oeco- oeno- oenoe oeppo offen offof offon ofone ofono ofpop oncee onco- onene oneno oneof oneon oneop onne- onnen onoff onone onoon onpop ooooo opcon openf opepe opone oppon p-n-p pecco pecon peece peene pence penco pene- penne penon peone pepco pepee pepon peppe pneo- po-on po-po pocno pocop ponce ponne poope poopo popco popon popop poppe poppo