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 Input:
Billy and Sally are brother and sister. Billy is seven and Sally is eight. Their mother, Deborah, likes to have Billy and Sally dress up in costumes and play a game where they are answering the telephone. Usually when they play the game, Billy answers the telephone in a loud voice, and Sally answers the telephone in a quiet voice. On Tuesdays, Billy answers in a quiet voice, and Sally answers in a loud voice. On Fridays, Billy answers in a loud voice and Sally in a quiet voice. Billy has blonde hair. Sally has brown hair. Deborah has blonde hair, and Billy and Sally's father, Bob, has brown hair. He tells them to eat lettuce every time that he sees them, so that they grow big and strong like he is. Deborah likes to add some sugar with the lettuce so that Billy and Sally know what it is like to have sweet tastes in their life. One day, a Wednesday, Billy throws some lettuce into Sally's hair. Deborah laughs an grabs some straw from their farm and puts it in Billy's hair. Billy and Sally live on a farm. They have a goat, named Joey, and a duck, named Quack. They sometimes play a game with the goat where they chase him around the farm. Other times, they play a game with Quack where they wave at Quack and laugh. They have a fun life growing up on the farm. <sep>What games do Billy and Sally play?<sep>Sally has brown hair.

Ex Output:
No

Ex Input:
You couldnt survive without your skin. It has many important functions. The main function of the skin is controlling what enters and leaves the body. It prevents the loss of too much water from the body. It also prevents bacteria and other microorganisms from entering the body. The skin helps maintain a constant body temperature. It keeps the body cool in two ways. Sweat from sweat glands in the skin evaporates to cool the body. Blood vessels in the skin dilate, or widen. This action increases blood flow to the body surface. This allows more heat to reach the surface. The heat is then able to radiate off the body. The opposite happens to retain body heat. Blood vessels in the skin constrict, or narrow. This decreases blood flow to the body surface. This reduces the amount of heat that reaches the surface. When this happens, less heat can be lost to the air. <sep>What prevents the loss of too much water from the body?<sep>Glands

Ex Output:
No

Ex Input:
On December 4, as news came in about the discoveries in Jordan, National Security Council (NSC) Counterterrorism Coordinator Richard Clarke wrote Berger, "If George's [Tenet's] story about a planned series of UBL attacks at the Millennium is true, we will need to make some decisions NOW." He told us he held several conversations with President Clinton during the crisis. He suggested threatening reprisals against the Taliban in Afghanistan in the event of any attacks on U.S. interests, anywhere, by Bin Laden. He further proposed to Berger that a strike be made during the last week of 1999 against al Qaeda camps in Afghanistan-a proposal not adopted. Warned by the CIA that the disrupted Jordanian plot was probably part of a larger series of attacks intended for the millennium, some possibly involving chemical weapons, the Principals Committee met on the night of December 8 and decided to task Clarke's Counterterrorism Security Group (CSG) to develop plans to deter and disrupt al Qaeda plots. Michael Sheehan, the State Department member of the CSG, communicated warnings to the Taliban that they would be held responsible for future al Qaeda attacks." Mike was not diplomatic," Clarke reported to Berger. With virtually no evidence of a Taliban response, a new approach was made to Pakistan. 13 General Anthony Zinni, the commander of Central Command (CENTCOM), was designated as the President's special envoy and sent to ask General Musharraf to "take whatever action you deem necessary to resolve the Bin Laden problem at the earliest possible time." But Zinni came back emptyhanded. As Ambassador William Milam reported from Islamabad, Musharraf was "unwilling to take the political heat at home." The CIA worked hard with foreign security services to detain or at least keep an eye on suspected Bin Laden associates. Tenet spoke to 20 of his foreign counterparts. Disruption and arrest operations were mounted against terrorists in eight countries. In mid-December, President Clinton signed a Memorandum of Notification (MON) giving the CIA broader authority to use foreign proxies to detain Bin Laden lieutenants, without having to transfer them to U.S. custody. The authority was to capture, not kill, though lethal force might be used if necessary.16Tenet would later send a message to all CIA personnel overseas, saying, "The threat could not be more real. <sep>When do the events in the whole article take place?<sep>Late 1999

Ex Output:
Yes