c-p-c ccccc cech ceche ceene cegep cegge cegne cence cenph cenpn chech cheep chege chegg chen- chene cheng chepe cnnnn cphpc eccen eeeee eence eepee egene eggen eggng eghen ehnen encge enche engen epeen epene gee-h geech gegge gehee gehen genge genhe he-he heche heegh heene heeng heepe hegge hence hench henen henge henne hhhhh n-p-n neche neece neech neghe neneh neppe ngege p-n-p pcgen peche peece peege peene peeng pence pench pene- penge penne pepee peppe phccc phecc phen- phene