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".

[EX Q]: Alien Planet starts out with an interstellar spacecraft named Von Braun , leaving Earth's orbit . Traveling at 20 % the speed of light , it reaches Darwin IV in 42 years . Upon reaching orbit , it deploys the Darwin Reconnaissance Orbiter , Which looks for potential landing sites for the probes . The first probe , Balboa , explodes along with its lifting body transport during entry , because one of its wings failed to unfold . Two backup probes , Leonardo da Vinci and Isaac Newton , successfully land on the planet , and learn much about its bizarre indigenous lifeforms , including an apparently sapient species . The robotic probes sent out to research on Darwin IV are called Horus Probes . Each Horus probe consists of an { { convert } } long inflatable , hydrogen-filled balloon , Which is covered with solar receptors , a computer ' brain ' , a ' head ' covered with sensors , and several smaller robots that can be sent to places too dangerous for the probes themselves . The probes have a limited degree of artificial intelligence , very similar to the ' processing power ' of a 4-year-old . All the real thinking is done by a supercomputer in the orbiting Von Braun . The probes are programmed with different personalities ; Ike is more cautious , while Leo is the risk-taker . The two probes are also equipped with a holographic message that will be projected to any sentient life found on Darwin . After the two probes inflate their gas-bags , they encounter a voracious Arrowtongue and watch it pursue a Gyrosprinter . <sep>Which planet reaches Darwin IV by traveling at 20% the speed of light?<sep>Alien Planet with Von Braun
[EX A]: Yes

[EX Q]: According to the radar reconstruction, American 77 reemerged as a primary target on Indianapolis Center radar scopes at 9:05, east of its last known position. The target remained in Indianapolis Center's airspace for another six minutes, then crossed into the western portion of Washington Center's airspace at 9:10. As Indianapolis Center continued searching for the aircraft, two managers and the controller responsible for American 77 looked to the west and southwest along the flight's projected path, not east-where the aircraft was now heading. Managers did not instruct other controllers at Indianapolis Center to turn on their primary radar coverage to join in the search for American 77. In sum, Indianapolis Center never saw Flight 77 turn around. By the time it reappeared in primary radar coverage, controllers had either stopped looking for the aircraft because they thought it had crashed or were looking toward the west. Although the Command Center learned Flight 77 was missing, neither it nor FAA headquarters issued an all points bulletin to surrounding centers to search for primary radar targets. American 77 traveled undetected for 36 minutes on a course heading due east for Washington, D.C. By 9:25, FAA's Herndon Command Center and FAA headquarters knew two aircraft had crashed into the World Trade Center. They knew American 77 was lost. At least some FAA officials in Boston Center and the New England Region knew that a hijacker on board American 11 had said "we have some planes." Concerns over the safety of other aircraft began to mount. A manager at the Herndon Command Center asked FAA headquarters if they wanted to order a "nationwide ground stop." While this was being discussed by executives at FAA headquarters, the Command Center ordered one at 9:25. The Command Center kept looking for American 77. At 9:21, it advised the Dulles terminal control facility, and Dulles urged its controllers to look for primary targets. At 9:32, they found one. Several of the Dulles controllers "observed a primary radar target tracking eastbound at a high rate of speed" and notified Reagan National Airport. FAA personnel at both Reagan National and Dulles airports notified the Secret Service. <sep>What was ordered at the Command Center at 9:25?<sep>Grounding
[EX A]: Yes

[EX Q]: In 2415 , after a virus in 2011 wiped out 99 % of the Earth's population , all of the survivors inhabit Bregna , a walled city-state , Which is ruled by a congress of scientists . Although Bregna is idyllic , people are routinely disappearing and everyone is suffering from bad dreams . on Flux is a member of the ' Monicans ' , an underground rebel organization who communicate through telepathy-enabling technology and are led by The Handler . After a mission to destroy a surveillance station , on comes home to find her sister Una has been killed for being mistaken for a Monican . When on is sent on a mission to kill the government's leader , Trevor Goodchild , she discovers that both she and the Monicans are being manipulated by council members in a secret coup . This discovery causes on to question the origins of everyone in Bregna ; and in particular , her own personal connection to Trevor . It turns out that everyone in Bregna is actually a clone , grown from recycled DNA . With the dead constantly being reborn into new individuals and still bearing partial memories of their previous lives , there has been an increase in the troubling dreams . Recycling and cloning became necessary since the original viral antidote made humans infertile . Trevor's ongoing experiments , as with all his clone ancestors , has been trying to reverse the infertility . on learns that she is a clone of the original Trevor's wife , Katherine and is the first Katherine clone in over 400 years . One of Trevor's experiments , Una , was successful as she became pregnant . <sep>What are possibilities of previous lives?<sep>Partial memories of their previous lives
[EX A]:
No