196282
The core site is an old DuPont explosives factory , where the company manufactured black powder and other explosives between 1906 and the 1970s , this caused part of the property to become a hazardous waste site and required environmental remediation .
 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