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He is mayor of Grabels , a working-class suburb of Montpellier ( Hérault ) since 2008 .
 Montpellier, Hérault
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Montpellier, Hérault