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: Northern Lights Tour Located in the middle of the northern lights belt, Tromso can offer some of the highest levels of northern lights activity on earth. Perhaps Tromso is the world's best place for a Northern Lights Tour. Join one of our Northern Lights Holidays this winter. It could become one of the greatest experiences in your life. DESTINATION  Tromso county, Norway. PRICE  $450 per person WHEN  2th September until 31st March. PICK-UP  Each evening at 6 PM outside your hotel. DROP-OFF  Earliest at 12 AM. When we have a sighting we often stay out later, at no extra cost. SIZE OF GROUP  Maximum 8 participants is recommended and normal, but not absolute. A small group allows more freedom in terms of chasing the northern lights. INCLUDED - Transportation each day in a comfortable car - A meal each day - All necessary equipment such as snowshoes, flashlight, water-filled bottle, woolen underwear, a warm, hat, warm shoes, warm stockings, and reindeer skin to lie on, if needed. - A guide who will do anything necessary to find the northern lights. EXCITING CHASE A Northern Lights Holiday means an intense and exciting chase--to the coast or deep into the wild, perhaps even to the Finnish border. Each day on a Northern Lights Tour we contact meteorologists shortly before departure to get accurate information. In order to find out where we will have best chances to see the northern lights. WE GUARANTEE A GREAT TRIP The northern lights are unpredictable, but we guarantee that we will do everything to find _ . Patience is a keyword on Northern Lights Tour. ECO-TOURISM We offer ecologically sustainable and responsible tours. Travelling in small groups is an essential part of the ecotourism concept, as small groups have lesser impact on nature and will not disturb the wildlife unnecessarily. 
 Question: A small group is preferred for the following reasons EXCEPT that   _  . 
 Options: (A) a small group is free to run after the northern lights (B) a small group has less effect on nature (C) a small group can save the travel cost (D) a small group will not disturb wildlife 
 Asnwer: C

Ex Output:
Yes


Ex Input:
Article: Good Teachers A language training school at Yayuncun needs two full-time teachers and three part-time teachers to teach adults, 12 students a class, oral English and business English during afternoons and evenings.      Full-time teachers 25--30 hours per week, 10 000--2 000 yuan per month.  Part-time teachers can choose the class to teach, 100--150 yuan per hour, according to your experience. Need native English speakers with teaching experience. Please send your RESUME and PICTURE to eslchina@ yahoo.com.cn                                     Writers/Researchers Currently, Fisher's Travel SOS is looking for the freelance writer and researcher with experience in journalism and the ability to computers, it is part-time positions for our project that will take a month to complete.  Work is conducted at home, and will take a couple of hours per day or less. Full training is given. Please refer to www.Fisherstravelos.com for more information on our company. Journalists and writers interested in the positions should directly contact Danielle-Chu at daniellechu@ fisherstravelsos. com with your details and CV . Full-time Waiters/Waitresses/Bartenders We are a beautiful modern world famous Tiki Bar looking for FULL-TIME staff --waiters/waitresses/ bartenders for its current expansion. If you are 18 to 25 years old, with good looks, wit and charm, this job is for you. Good English and basic restaurant experience are necessary but not required. Please contact us. Tel: 13370153195 Mail :dacfxa@ 163bi. com Advertising Sales You must have a "sales" personality -- you need to love knocking on doors, giving presentations, closing deals, and keeping your customers happy. You don't need any special degrees, and you don't have to speak English. It would be better if you should have advertising sales experience, but that's not a requirement. If this sounds fit for you, please email your resume  to jobs @ chinadeco, com. cu. 
 Question: You must know English if you want to be  _ 
 Options: (A) a teacher (B) a waiter (C) a writer (D) a seller 
 Asnwer: A

Ex Output:
Yes


Ex Input:
Article: How would you like to sleep with one half your brain asleep and the other half awake? Dolphins sleep this way. Recently, scientists at Indiana State University have discovered that ducks sleep this way too. They found that ducks sleep half awake so they can rest and watch for danger at the same time. After putting their ducks in a row and videotaping them, some researchers found ducks on the end of each row spent more time asleep with one eye open, apparently looking for _  "The more the ducks felt threatened, the more they slept with one eye open," said lead author Niels C. Rattenborg, a graduate student at Indiana State University, Terre Haute. "The unique aspect is not that they do it, but that they control it. When they sleep at the edge of a group, they tend to realize greater danger, so they spend more time sleeping with one half of their brain." Ducks with one eye open were still awake enough to detect predators, said the authors of the study, which appears today in the journal Nature. The researchers studied four groups of four ducks held in plastic boxes, which were arranged in a row. Ducks on the end were found to sleep with one eye open 31.8 per cent of the time, compared to 12.4 percent of the time for ducks in the central position. Also, ducks in the central position did not open one eye more than the others, while ducks on each end kept the eye facing away from the group open 86.2 per cent of the time. Brain wave readings of the ducks showed that the half of the brain receiving signals from the closed eye indicated that half of the brain was sleeping. Signals from the half of the brain receiving signals from the open eye showed a state between fully awake and asleep. 
 Question: The under lined word "predator" is most likely to mean  _  . 
 Options: (A) an animal that is likely to be friends with ducks (B) a human being who looks after and feeds ducks (C) a scientist who does research work on animals (D) an animal that hunts, kills and eats other animals 
 Asnwer: B

Ex Output:

No


