Input: Article: Y-Gerat was the most complex system of the three. It was, in effect, an automatic beam-tracking system, operated through the bomber's autopilot. The single approach beam along which the bomber tracked was monitored by a ground controller. The signals from the station were retransmitted by the bomber's equipment. This way the distance the bomber travelled along the beam could be precisely verified. Direction-finding checks also enabled the controller to keep the crew on an exact course. The crew would be ordered to drop their bombs either by issue of a code word by the ground controller, or at the conclusion of the signal transmissions which would stop. Although its maximum usable range was similar to the previous systems, it was not unknown for specific buildings to be hit.

Now answer this question: Who operated the automatic beam system?

Output: the bomber's autopilot

Input: Article: The Bronx is the home of the New York Yankees of Major League Baseball. The original Yankee Stadium opened in 1923 on 161st Street and River Avenue, a year that saw the Yankees bring home their first of 27 World Series Championships. With the famous facade, the short right field porch and Monument Park, Yankee Stadium has been home to many of baseball's greatest players including Babe Ruth, Lou Gehrig, Joe DiMaggio, Whitey Ford, Yogi Berra, Mickey Mantle, Reggie Jackson, Derek Jeter and Mariano Rivera.

Now answer this question: When did the first Yankee Stadium open?

Output: 1923

Input: Article: Historically, in North America, one of the most economically destructive pests in cotton production has been the boll weevil. Due to the US Department of Agriculture's highly successful Boll Weevil Eradication Program (BWEP), this pest has been eliminated from cotton in most of the United States. This program, along with the introduction of genetically engineered Bt cotton (which contains a bacterial gene that codes for a plant-produced protein that is toxic to a number of pests such as cotton bollworm and pink bollworm), has allowed a reduction in the use of synthetic insecticides.

Now answer this question: What program has effectively eliminated the boll weevil in the US?

Output:
Boll Weevil Eradication Program