64464
This dropped to 500 after the Second World War and in 1978 , when the last mechanical torpedo ( the Mark 8 ) in use by the Dutch Navy was phased out and replaced by electric torpedoes , the Service was disestablished .
 None
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:  
Answer:
 None