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The U.S. embassy in Athens , the consulates general in Athens and Thessaloniki and all U.S. government offices in Greece will be closed on Monday , September 2 in observance of Labour Day , a U.S. national holiday , the embassy said .
 location: Greece; location: Thessaloniki; location: U.S.; location: Athens; location: Athens; location: U.S.; else: Labour Day; location: U.S.
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities: Greece, Thessaloniki, U.S., Athens, Athens, U.S., Labour Day, U.S. 
Answer:
 location: Greece; location: Thessaloniki; location: U.S.; location: Athens; location: Athens; location: U.S.; else: Labour Day; location: U.S.