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EOWS ( Electronic Outdoor Warning Siren ) is a series of electronic outdoor warning sirens by Federal Signal Corporation which began production in the early 1980s .
 organization: Federal Signal Corporation
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Federal Signal Corporation 
Answer:
 organization: Federal Signal Corporation