In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

Ex Input:
Article: As the train approached the seaside town where I was going to spend my holiday, I went into the corridor to stretch my legs.I stayed there for a short while,breathing in the fresh air and exchanging a few words with one of the passengers,whom I had met earlier on the station platform. When I turned to go back to my seat,I happened to glance into the compartment next to mine.Sitting there was a man who many years before had been my neighbor.He was a great talker, I remembered;it used to take hours to get away from him once he began talking.I was not at all sorry when he went to live in another part of London.We had not met since then,nor did I wish to meet him now, when my holiday was about to begin. Luckily at that moment he was much too busy talking to the man opposite him to have the chance to notice me.I slipped back into my compartment,took down my two suitcases and carried them to the far end of the corridor so as to be ready to get off the train as soon as it stopped.The moment the train came to a stop,I called a porter, who _ carried my luggage out of the station and found a taxi for me.As I drove towards the small hotel on the other end of the town,I breathed a deep relief and felt happy that there was little chance that I should run into my boring ex-neighbor again. When I reached the hotel, I went straight to my room and rested there until it was time for dinner.Then I went to the lounge and ordered a drink.I had hardly raised the glass to my lips when a too familiar voice greeted me.I had not escaped from my tiresome neighbor after all !
Question: The writer went into the corridor because _ .
Options: (A) he wanted to take a rest (B) he wanted to meet his friend (C) he wanted to get off the train (D) he wanted to have a walk
Asnwer: A

Ex Output:
Yes

Ex Input:
Article: Does it drive you crazy that your cell phone needs to be frequently charged for hours? A team of scientists led by professor Harold Kung at Northwestern University in the US may have solved your problem. They developed a lithium ion batery that holds 10 times as much power and charges 10 times more quickly than standard batteries, according to the BBC in a report on November 15. Lithium ion bateries are rechargeable and are widely used in cameras, smartphones and laptops. They charge through a chemical reaction in which lithium ions are sent between the two ends of a battery. How much power the battery holds and how fast it charges are limited by two things:how many lithium ions it has and how quickly these ions move. Current rechargeable batteries have an anode made of many carbon-based graphene sheets. To increase energy capacity, former experiments have tried to replace the carbon with silicon, which can hold far more lithium ions. However, this method did not work because the silicon was not stable enough. Kung's team managed to stabilize the silicon. They put clusters of silicon between the graphene sheets like a sandwich so that the silicon could not move around freely and take away the energy. The speed at which a battery charges is hindered by the shape of the graphene sheets because it takes a long time for the lithium to travel from one side of the sheet to the other.Sometimes a "traffic jam" occurs around the edges of the graphene. To solve this problem, Kung's team used a special chemical process to create tiny holes of 10 to 20 nanometers wide in the graphene sheets so the lithium ions would have a "shortcut" and be able to travel directly to the other side. This reduced the time it took the battery to recharge. About 15 minutes of charging can last more than a week. "Even after 150 charges, which would be one year or more of operation, the battery is still five times more effective than lithium ion batteries on the market today," said Kung. The technology could be widely available within five years, the researchers said.
Question: What is the major problem of current rechargeable batteries?
Options: (A) They are not very stable. (B) They cannot hold enough silicon. (C) They have limited energy capacity. (D) The space between the graphene sheets is too big.
Asnwer: A

Ex Output:
No

Ex Input:
Article: More than one-third of adults in the United States are obese . In fact, over obesity has reached such proportions that one big-city mayor has gone about banning large-sized, sugary soft drinks and the First Lady has been on a campaign to control the dietary offerings in public schools. Even many adults who do not fit the clinic definition of obesity are still overweight, and a large percentage are looking for the best ways to lose weight. Reducing pounds largely comes down to the two-sided factors of diet and exercise. Not carrying out the first one enough, and not getting enough of the second one, ends up giving the individual a recipe for being overweight. Advising someone to eat less and exercise more might be the easiest advice possible, but it's also, partially, an oversimplification. Dieting has more to do with the types of food you eat than how much you eat. Reduce the amount of red meat in your diet. If you don't want to eliminate red meat altogether, choose cuts of meat with less fat content. Limit your intake of salt and starches. If you've got to have potato chips alongside your sandwich at lunch, choose the baked potato chips that contain less fat than the deep-fried chips. You might find you're really not sacrificing that much in terms of taste. A diet rich in fruits, vegetables, egg whites, fish and nonfat dairy products will certainly aid in the mission of losing weight. Drink more water and less sugary drinks. If you have to have a soda, a diet soda is a better option, but seltzer is an even better choice than that. It's important--if not always easy--to make sure you get at least some physical activity each and every day. If your feet won't allow for a regular jogging regimen, then make sure you take lots of walks. Next time you need to mail a letter, walk to the mailbox instead of driving. Try to work in a daily walk in your neighborhood.
Question: You should _ when you want to lose weight
Options: (A) try not to fit the clinic definition of obesity (B) diet as well as exercise enough (C) get little exercise every day (D) focus your attention on diet only
Asnwer: B

Ex Output:
Yes