Problem: Duel is a 1971 television (and later full-length theatrical) thriller film written by Richard Matheson, which is based on his own short story. The film is the full-length film directing debut of American director, producer, and screenwriter Steven Spielberg.

Based on the paragraph above can we conclude that "Duel has had a sequel."?

A: It's impossible to say

Problem: Diaspora studies is an academic field established in the late 20th century to study dispersed ethnic populations, which are often termed diaspora peoples. The usage of the term diaspora carries the connotation of forced resettlement, due to expulsion, coercion, slavery, racism, or war, especially nationalist conflicts.

Based on the paragraph above can we conclude that "Diaspora studies can be taught in high school."?

A: It's impossible to say

Problem: The 1941 U.S. Open was the 45th U.S. Open, held June 57 at Colonial Country Club in Fort Worth, Texas. Craig Wood, who had lost in a playoff at the U.S. Open two years earlier, finally broke through and claimed his first U.S. Open title, three strokes ahead of runner-up Denny Shute in sweltering heat. Eight years earlier, Shute had defeated him in a playoff at the 1933 British Open.

Based on the paragraph above can we conclude that "The 1941 U.S. Open was held on the 5th"?

A:
Yes