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: Opened in 1883, the Brooklyn Bridge was the first longspan bridge to carry motor traffic, and it quickly became the model for the great suspension bridges of the following century. Spanning New York's East River, it provided the first traffic artery between Manhattan Island and Brooklyn. Before that, the only transportation was by ferries, which were slow and could be dangerous in winter. The construction of a bridge over the EastRiver had been discussed since the early 19th century, but the outbreak of the Civil War in 1861 _ all consideration of the project. When the war ended in 1865, the bridge became an important issue once more. In 1867, the New York State passed an act setting up the New York Bridge Company for the purpose of constructing a bridge between Manhattan Island and Brooklyn. John Augustus Roebling was chosen to design the bridge. Born in Germany in 1806, he held aggressive views as a student and was listed by the German police as a dangerous figure. He emigrated to America in 1830 to escape political discrimination. Roebling proposed a bridge with a span of 1,500 feet (465 m), with two towers in the East River serving as the main piers. The bridge that was actually built is longer--1,597 feet (486 m), the longest suspension bridge at that time.
Question: What was the purpose of building the Brooklyn Bridge?
Options: (A) To replace an old bridge. (B) To set up a model for bridge construction. (C) To build a longspan bridge for the Civil War. (D) To provide faster and safer transportation than boats.
Asnwer: A

Ex Output:
No

Ex Input:
Article: Scientist Florence Wambugu works with farmers in Kenya, a country in East Africa. She helps them grow bigger and better crops. Wambugu is especially interested in finding simple ways to produce more food. In the past ten years, Wambugu has spent much of her time studying sweet potatoes, which are an important food in her part of Kenya. A virus kept attacking the plants. It stopped the sweet potatoes from growing well. Because of the virus, some farmers lost three quarters of their crops. Wambugu went to war against the virus. Her research for a way to save the sweet potatoes led to a lab in St. Louis, Missouri. The lab mainly works on genes , the chemical "computer programs" found in the cells of living things. Genes tell a plant to produce pink flowers or an animal to grow black hair. Now scientists have found ways to move genes from one living thing to another. That process is called genetic engineering. Wambugu spent three years in the lab. As a result, she created a sweet potato plant that could fight off the virus. Wambugu tested her research in Kenya, and her plants produced wonderful sweet potatoes. That's just the beginning, Wambugu believes. Genetically modified foods, she thinks, could help farmers in poor countries grow badly needed crops, thus, fewer people will go hungry.
Question: The text is written mainly to _ .
Options: (A) tell us sweet potatoes are in danger of being attacked by a virus (B) introduce Wambugu's contribution to genetic engineering (C) introduce a new way of killing plant viruses (D) tell how hard Wambugu worked in her lab for three years
Asnwer: B

Ex Output:
Yes

Ex Input:
Article: The Winter Olympic Games are a major international sporting event that occurs once every four years. Unlike the Summer Olympics, the Winter Olympics feature sports practiced on snow and ice. The first Winter Olympics, the 1924 Winter Olympics, was held in Chamonix, France. The Games were held every four years from 1924 until 1936, after which they were interrupted by World War II. The Olympics resumed in 1948 and was again held every four years. Until 1992, the Winter and Summer Olympic Games were held in the same year. The Winter Games have evolved since its beginning. Sports and disciplines have been added and some of them, such as short track speed skating, freestyle skiing, have earned a permanent spot on the Olympic program. Others have been discontinued and later reintroduced. Still others, such as speed skiing, bandy and skijoring, were demonstration sports but never incorporated as Olympic sports. The rise of television as a global medium for communication _ the impression of the Games. It created an income stream, via the sale of broadcast rights and advertising.This allowed outside interests, such as television companies and corporate sponsors. Beijing has become the first city to host both Summer and Winter Olympic Games after beating Kazakhstan's Almaty to hold the 2022 Winter Olympics. With a fully-prepared final presentation by an all-star team, Beijing has successfully convinced the committee members that the 2008 Olympics host city is a more favored candidate for the Winter Games. Beijing was the safe choice because it had already proved it could stage the Games and said it would take winter sports into the backyard of the world's most populated country.
Question: Why were the Winter Olympic Games not held for 12 years ?
Options: (A) Because of the economic crisis (B) Because of culture difference (C) Because of the Second World War (D) Because of countries' lack of interest
Asnwer: B

Ex Output:
No