56946
According to Gen. Tran Van Tra , the [ North Vietnamese ] " Party concluded , the " United States was forced to introduce its own troops because it was losing the war .
 person: Tran Van Tra
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: Tran Van Tra 
Answer:
 person: Tran Van Tra