3781
Owned by the San Diego Fire-Rescue Department , the helicopters are known by the call signs Copter 1 and Copter 2 , respectively .
 location: Diego; organization: helicopters
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Diego; organization: helicopters