In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Article: Air conditioning, watermelons, ice cream-we have all kinds of gadgets and food to get us through the summer. But what could be better during the hot months? The following are a few special and well-known water parks around the world. Take a good look, and know what the real water parks look like. Noah's Ark Location: Wisconsin Dells, Wisconsin, US Noah's Ark offers many water slides. The most notable ride is the Black Anaconda. At more than 400 meters in length, it is the US' most thrilling water coaster and sends riders spiraling down at speeds of up to 48 kilometers per hour. Plus, with 18 indoor water parks, Wisconsin Dells offers plenty of splashes for water lovers. Tropical Islands Resort Location: Brandenburg, Germany This resort offers the largest indoor water park in the world-at 65,961 square meters. And its indoor pool can hold 6,000 visitors at a time. As Europe's largest tropical holiday world, Tropical Islands is more than a water park. It's a fully functional resort, featuring a theme park, an artificial rainforest, a lagoon, a beach, steam baths, saunas and many shops and restaurants. There are also several water slides and other activities that people of all ages can enjoy. Las Cascada Water Park Location: Aguadilla, Puerto Rico Las Cascada is well known for its unbelievable beauty. It is surrounded by tropical mountain forests and situated close to the ocean. The water ride, E1 Rio Pasivo, carries riders through the whole water park. They can see the mountains and waterfalls around it. Chimelong Water Park Location: Guangzhou, China It is one of the largest water parks in Asia. With its advanced technology, it also has many new aquatic facilities in the industry. One of the park's rides offers a tube conveyor that transports riders up a 19-meter-tall tower. The park has implemented a special water treatment system that ensures safe PH levels and removes harmful germs.
Answer: Chimelong Water Park.
Which of the following water parks sounds the cleanest?

Article: New picture The National Gallery now has a fine _ by the 18th century Dutch painter Jan van Os.This large picture (89.1 cm x 71cm) of flowers and fruit is painted in light bright colours on wood.It is one of the first pictures of this type in the Gallery.The picture is signed and dated 1777 and 1778.It is not unusual for a picture to be dated two years: the artist waited for particular flowers to come out in their different seasons in order to paint them.This picture was given to the Gallery by Miss Violet Churchman in memory of her sister Ida Nancy. It is now on show in Room 25. Special exhibition The exhibition "Painting in Spain During the Late 18th Century" opened in the Sunley Room on 15 March.Recently the Gallery has bought works by three Spanish painters of this period--Paret, Melendez and Francisco Bayeu, who are the focus of the exhibition.These three artists are also joined by Francisco's brother Ramon, by Antonio Gonzalez and two Italians who worked in Spain during these years--Corrado Giaquinto and Giovanni Battista Tiepolo.The exhibition runs until 31 May. Lecture news Lectures will be given along with the special exhibition every Wednesday.On 8 April, Lizzie Barker will discuss the work of Melendez, while on 15 April, Sarah Symmons will lecture on Luis Patter.On 22 and 29 April, Juliet Wilson will talk about Francisco Bayeu.On 25 April, a Saturday, Erika Langmuir will explain how artists often "tell a story" through their pictures.
Answer: Eight.
How many artists' paintings are on show at the special exhibition?

Article: The world, in painter Chen Xiao's eyes, is as colorful and sweet as ice cream. At the opening of his latest exhibition, Colorful World in the Eyes of Sean Chen, at the National Museum of China recently, the artist told his story. Chen left China for Australia in 1986 to seek artistic freedom, and like many new immigrants then, he had little money in his pocket. To make ends meet, he drew portraits of people in the street. Every day, he saw people buy ice cream from a shop. Chen couldn't help wondering: "It must taste great, that's why so many people buy it." But he didn't buy one for himself because he had to save money to support his studies. After four months of painting there and watching people eat ice cream, Chen didn't resist the temptation --- he bought an ice cream. "The first bite took me to heaven," Chen recalls while laughing. "You know, as a poor young man in a new country, an ice cream was too expensive then." Since then, he kept the taste of the ice cream in his heart and included the happy feelings in his paintings, which turn out to be colorful and sweet. His current exhibition is part of his nationwide tour that began at the National Art Museum of China in Beijing in 2011. He plans to take his artworks to 24 cities around China by 2016. The exhibition at the National Art Museum of China will last until April 22. After the exhibition tour, he will sell his works through an auction , and all the money will be donated to protection of the environment in China. "The natural environment of New Zealand has inspired my artwork and brought me enjoyment. I hope people in my home country can enjoy the same beautiful environment as I do," says Chen, who has made New Zealand his home for the last 26 years.
Answer: To seek artistic freedom.
Why did Chen Xiao leave China for Australia in 1986?