question: Von Braun and his associates were sent to United States Army 's White Sands Proving Ground in what year ?
answer: 1945
turker_answer: Von Braun and his associates were sent to United States Army 's White Sands Proving Ground in 1945 .
rule-based: Von Braun and his associates were sent to United States Army 's White Sands Proving Ground in 1945 .