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Gunmen seized Penrose , who comes from Swerford in southern England , Frenchman Frederic Malardeau and six other hostages from their car in Grozny , the capital of Chechnya , on July 27 .
 Grozny, Frederic Malardeau, Chechnya, Swerford, England, Penrose, Frenchman
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Grozny, Frederic Malardeau, Chechnya, Swerford, England, Penrose, Frenchman