c-p-c ccccc ccell ceele ceene cell- celle cence cenel cenpk cenpl cenpn cleck cleek cleen cleke clene clenk clepe cnnnn eccen eccle eckel eckle eecke eeeee eence eepee ekene elele elene elken ellek ellel ellen elnec elpee encke enlen epeen epene kcell kecel keele keene keepe kekec kelce kelek kelen kelep kelle kenel kenne keppe klece klene klenk klepp kneck kneel kneen kneep knele knell knepp lcecn lecce leece leeke leell lekel lelep lelle lence lenek lenne lepel lepke leppe n-p-n ncell nckel necke neece neele nelle neple neppe p-n-p pcell pckle pclkc pecel pecke peece peeke peele peell peene pelee pelle pence penck pene- penne pepee pepel peple peppe pleck pleen pleep pleke plene