5079
[ 6 ] Snake must liberate two hostages , the head of DARPA and the president of a major arms manufacturer , confront the terrorists , and stop them from launching a nuclear strike .
 None
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:
 None