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.

Example Input: Article: Treat with Respect The speed with which Man is changing the face of Earth has outstripped all the mighty processes of nature put together. In his haste to supply himself with increasing quantities of Earth's treasures he risks destroying one he greatly needs, his natural surroundings. Some countries set aside unspoiled areas of natural beauty. prefix = st1 /Canadahas the largest system of national parks in the world, 29 in all covering about 13 million hectares, preserving the different landscapes and the plant and animal life. Other countries are restoring areas which have been reduced to waste land by mining. At Broken Hill in Australiadrifting sand from rock crushing turned the area into a desert swept by sand storms. This is now being irrigated, fertilized and planted with grass and trees. In Great Britain quarries and gravel pits are being filled in or made into lakes, industrial wasteland is being turned into playing fields and waste tips into sloping green hills. However Man tries to look after Earth, the fact is that he is using up at a great rate resources, especially fuel resources, which have taken millions of years to accumulate and which he cannot renew. Yet every day the Earth receives a huge supply of energy from the Sun. Man has made several experiments in using solar energy to heat furnaces , cookers, and water-distillers. In space technology, e.g. on satellites, solar cells convert sunlight into electricity. Houses and offices have been designed which are centrally heated by water or air heated by the sunlight. When Man can trap and store this energy, so that he can use it exactly as he needs it, he will have not only an endless supply, but a clean and safe one.
Answer: Energy from the Sun.
Example Output: According to this selected passage, which energy is considered to be endless, clean and safe?

Example Input: Article: Tim Welford, aged 33, and Dom Mee, aged 30, both from England, were keen on (="like..." very much) rowing boats. They made a plan to row across the Pacific Ocean from Japan to San Francisco. The name of their rowboat was "Crackers". It was about seven meters long. They set out from Japan on May 17,2001. They had rowed nearly 5,500 miles when their boat was hit by a fishing ship on September 17,2001. Luckily they both escaped unharmed, but their boat was badly damaged and they had to abandon( =" stop)their" journey. In a radio interview, Dom expressed his disappointment and explained how the accident took place. "A fishing ship came towards us with nobody on the bridge and ran us down. It all happened so quickly. I managed to dive into the water. Tim felt it would be safer to stay on board. He was trapped inside as the boat was driven under the water. Finally some people appeared on the ship and saw me in the water. I shouted at them to stop the ship and to get Tim out. When the ship stopped, I eventually saw Tim, and I was very, very happy that we were still alive. We were very disappointed that we couldn't reach San Francisco. But we are alive. That above everything is the most important. "
Answer: For four months.
Example Output: 41. How long had Tim and Dom been at sea when their boat was hit by a fishing boat?

Example Input: Article: How many coins have you got in your pocket right now?Three?Two?Or one?With a phonecard you can make up to 200 calls without any change at all. 1.What do you do with it? Go to a telephone box marked "Phonecard".Put in your card,make your call and when you've finished,a screen tells you how much is left on your card.It costs no extra for the cards,and the calls cast 10 per unit,the same as any other payphone call.You can put them in units of 10,20,40,100 or 200. 2.Now appearing in a shop near you Near each card phone place you'll find a shop where you can buy one.They're at bus,train and city tube stations.Many universities,hospitals and clubs,restaurants and gas stations on the highway and shopping centers.At airports and seaports. 3.No more broken payphones Most broken payphones are like that they've been vandalized .There are no coins in Cardphone to excite thieves' interest in it.So you're not probably to find a vandalized one.Get a phonecard yourself and try it out.Or get a bigger wallet.
Answer: Section 1&2.
Example Output:
There are three sections in the passage.Which section do you think is about why phonecards are good?