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".

Example Input: At 8:38, Ong told Gonzalez that the plane was flying erratically again. Around this time Sweeney told Woodward that the hijackers were Middle Easterners, naming three of their seat numbers. One spoke very little English and one spoke excellent English. The hijackers had gained entry to the cockpit, and she did not know how. The aircraft was in a rapid descent. At 8:41, Sweeney told Woodward that passengers in coach were under the impression that there was a routine medical emergency in first class. Other flight attendants were busy at duties such as getting medical supplies while Ong and Sweeney were reporting the events. At 8:41, in American's operations center, a colleague told Marquis that the air traffic controllers declared Flight 11 a hijacking and "think he's [American 11] headed toward Kennedy [airport in New York City]. They're moving everybody out of the way. They seem to have him on a primary radar. They seem to think that he is descending." At 8:44, Gonzalez reported losing phone contact with Ong. About this same time Sweeney reported to Woodward, "Something is wrong. We are in a rapid descent . we are all over the place." Woodward asked Sweeney to look out the window to see if she could determine where they were. <sep>How did the flight attendants keep the passengers calm while they were reporting the hijacking to the ground operations?<sep>That there was a routine medical emergency in first class
Example Output: Yes

Example Input: Conduction is the transfer of thermal energy. It occurs between objects or substances that are touching. Thermal conductors are materials that are good conductors of heat. Thermal insulators are materials that are poor conductors of heat. Both conductors and insulators have important uses. Convection is the transfer of thermal energy. This occurs as particles move within a fluid. The fluid may be a liquid or a gas. The particles within the fluid transfer energy by moving from warmer to cooler areas. They move in loops. These loops are called convection currents. Radiation is the transfer of thermal energy by waves. These waves can travel through empty space. When the waves reach objects, the heat is transferred to the objects. Radiation is how the Sun warms the Earths surface. <sep>What is it called when thermal energy is transferred between 2 objects that are touching<sep>Induction
Example Output: No

Example Input: What if two children push a swing at the same time? Would the swing go higher? Yes, together their force would be more. It is common for forces to be combined. Most objects on Earth have at least two forces acting on them. Do you know what one of them is? Of course, that force is gravity. How many forces do you have on you right now? Gravity pulls you down toward the center of Earth. Your legs exert a downward force. They hold you up against the pull of gravity. Consider the example in Figure 1.3. A book is resting on a table. Gravity pulls the book downward. It has a force of 20 newtons. At the same time, the table pushes the book upward. Its force is also 20 newtons. The table opposes the pull of gravity. <sep>How many forces do you have on you right now?<sep>Two
Example Output:
Yes

