c-one ccccc ceco- cecon cecun ceene cence ceneu ceno- cenon ceoce cnnnn co-co cocc- cocce cocco coceo cocon coen- conco conne connu cono- conon cooee coone couco cunco cuneo cunne cuoco e-one eccen econo eeeee eence eneco enone eucen eunoe necco neece nenno neuen neueu neune neuou nnooo no-no non-u nonce nonne nonno noone noonu noune nu-nu nueno nunce nunon nunun oceno ocoee oeco- oeno- oenoe oncee onco- oncue onene oneno oneon onne- onnen onone onoon ooooo oouen ouene u-cee u-con uconn uncon unnun uouee uuuuu