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Lang said responses should be made to the Office of Fair Trading by Jan. 10 , 1997 .
 organization: Office of Fair Trading; person: Lang
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 organization: Office of Fair Trading; person: Lang