Teacher:Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
Teacher: Now, understand the problem? Solve this instance: Context: Wars of America is a ''colossal'' bronze sculpture by Gutzon Borglum containing ''forty-two humans and two horses'', located in Military Park, Newark, Essex County, New Jersey, United States.
Question: What material was used for Wars of America?
Student:
bronze