12911
Nancy Li serves as CEO ; Michael Her serves as EVP of Research and Development ; Ron Nunn serves as EVP of Business Operations ; Chris Wagner serves as EVP of Marketplace Strategy and Greg Willis serves as EVP of Sales & Marketing .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None