222488
The similarities to the song include that the reactor location was a deep canyon and the reactor operators were themselves 49 ' ers as 49 ( last digits of element 94 , isotope 239 ) was one of the code names for plutonium at the time .
 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