10647
The assassination proved to be a pivotal moment in U.S. history because of its impact on the nation , and the ensuing political repercussions .
 location: U.S.
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:
 location: U.S.