In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".

Input: Consider Input: General relativity includes a dynamical spacetime, so it is difficult to see how to identify the conserved energy and momentum. Noether's theorem allows these quantities to be determined from a Lagrangian with translation invariance, but general covariance makes translation invariance into something of a gauge symmetry. The energy and momentum derived within general relativity by Noether's presecriptions do not make a real tensor for this reason. Einstein argued that this is true for fundamental reasons, because the gravitational field could be made to vanish by a choice of coordinates. He maintained that the non-covariant energy momentum pseudotensor was in fact the best description of the energy momentum distribution in a gravitational field. This approach has been echoed by Lev Landau and Evgeny Lifshitz, and others, and has become standard. The use of non-covariant objects like pseudotensors was heavily criticized in 1917 by Erwin Schrodinger and others. <sep>When did the standard approach to energy momentum become criticized?<sep>1911

Output: Yes

Input: Consider Input: During the transition, Bush had chosen John Ashcroft, a former senator from Missouri, as his attorney general. On his arrival at the Justice Department, Ashcroft told us, he faced a number of problems spotlighting the need for reform at the FBI. In February, Clarke briefed Attorney General Ashcroft on his directorate's issues. He reported that at the time, the attorney general acknowledged a "steep learning curve," and asked about the progress of the Cole investigation. Neither Ashcroft nor his predecessors received the President's Daily Brief. His office did receive the daily intelligence report for senior officials that, during the spring and summer of 2001, was carrying much of the same threat information. The FBI was struggling to build up its institutional capabilities to do more against terrorism, relying on a strategy called MAXCAP 05 that had been unveiled in the summer of 2000. The FBI's assistant director for counterterrorism, Dale Watson, told us that he felt the new Justice Department leadership was not supportive of the strategy. Watson had the sense that the Justice Department wanted the FBI to get back to the investigative basics: guns, drugs, and civil rights. The new administration did seek an 8 percent increase in overall FBI funding in its initial budget proposal for fiscal year 2002, including the largest proposed percentage increase in the FBI's counterterrorism program since fiscal year 1997. The additional funds included the FBI's support of the 2002 Winter Olympics in Salt Lake City, Utah (a onetime increase), enhanced security at FBI facilities, and improvements to the FBI's WMD incident response capability. In May, the Justice Department began shaping plans for building a budget for fiscal year 2003, the process that would usually culminate in an administration proposal at the beginning of 2002. On May 9, the attorney general testified at a congressional hearing concerning federal efforts to combat terrorism. He said that "one of the nation's most fundamental responsibilities is to protect its citizens from terrorist attacks." The budget guidance issued the next day, however, highlighted gun crimes, narcotics trafficking, and civil rights as priorities. <sep>Who testified at a congressional hearing that, "one of the nation's most fundamental responsibilities is to protect its citizens from terrorist attacks"?<sep>Ashcroft predecessor

Output: No

Input: Consider Input: "What goes up must come down." You have probably heard that statement before. At one time this statement was true, but no longer. Since the 1960s, we have sent many spacecraft into space. Some are still traveling away from Earth. So it is possible to overcome gravity. Do you need a giant rocket to overcome gravity? No, you actually overcome gravity every day. Think about when you climb a set of stairs. When you do, you are overcoming gravity. What if you jump on a trampoline? You are overcoming gravity for a few seconds. Everyone can overcome gravity. You just need to apply a force larger than gravity. Think about that the next time you jump into the air. You are overcoming gravity for a brief second. Enjoy it while it lasts. Eventually, gravity will win the battle. <sep>What's an example refuting "What goes up must come down"?<sep>Walking up stairs
Output: Yes