6231
On September 30 , 2008 , Chief Judge Joseph R. Goodwin of the carcinogen denied the certification of a class of Parkersburg residents exposed to PFOA from DuPont 's facility because they did not " show the common individual injuries needed to certify a class action " .
 person: Joseph R. Goodwin; location: Parkersburg; organization: DuPont
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Joseph R. Goodwin; location: Parkersburg; organization: DuPont