In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Ex Input:
Article: What does the future hold for the problem of housing? A good deal depends, of course, on the meaning of "future". If one is thinking in terms of science fiction and the space age, it is at least possible to assume that man will have solved such trivial and earthly problems as housing. Writers of science fiction, from H.G. Wells onwards, have had little to say on the subject. They have conveyed the suggestion that men will live in great comfort, with every imaginable apparatus to make life smooth, healthy and easy, if not happy. But they have not said what his house will be made of. Perhaps some new building material, as yet unimagined, will have been discovered or invented at least. One may be certain that bricks and mortar(,) will long have gone out of fashion. But the problems of the next generation or two can more readily be imagined. Scientists have already pointed out that unless something is done either to restrict the world's rapid growth in population or to discover and develop new sources of food (or both), millions of people will be dying of starvation or at the best suffering from underfeeding before this century is out. But nobody has yet worked out any plan for housing these growing populations. Admittedly the worst situations will occur in the hottest parts of the world, where housing can be light structure or in backward areas where standards are traditionally low. But even the minimum shelter requires materials of some kind and in the teeming, bulging towns the low-standard "housing" of flattened petrol cans and dirty canvas is far more wasteful of ground space than can be tolerated. Since the war, Hong Kong has suffered the kind of crisis which is likely to arise in many other places during the next generation. Literally millions of refugees arrived to swell the already growing population and emergency steps had to be taken rapidly to prevent squalor and disease and the spread crime. The city is tackling the situation energetically and enormous blocks of tenements are rising at an astonishing aped. But Hong Kong is only one small part of what will certainly become a vast problem and not merely a housing problem, because when population grows at this rate there are accompanying problems of education, transport, hospital services, drainage, water supply and so on. Not every area may give the same resources as Hong Kong to draw upon and the search for quicker and cheaper methods of construction must never stop.
Answer: bricks and mortar will be replaced by some other building material.

Ex Output:
The writer is sure that in the distant future _ .

Ex Input:
Article: Any mistake made in the printing of a stamp raises its value to stamp collectors.A mistake on a two-penny stamp has made it worth a million and a half times its face value. Do you think it impossible? Well,it is true.And this is how it happened. The mistake was made more than a hundred years ago in the former British colony of Mauritius,a small island in the Indian Ocean. In l847 all order for stamps was sent to London Mauritius was about to become the fourth country in the world to put out stamps. Before the order was filled and the stamps arrived from England,a big dance was planned by the commander-in-chief of all the armed forces on the island.The dance would be held in his house and letters of invitation would be sent to all the important people in Mauritius.Stamps were badly needed to post the letters.Therefore,an islander,who was a good printer,was told to copy the pattern of the stamps.He carelessly put the words "Post Office" instead of "Post Paid", two words seen on stamps at that time,on the several hundred that he printed. Today, there are only twenty-six of these misprinted stamps left-fourteen One-penny Reds and twelve Two-penny Blues, Because there are so few Two-penny Blues and because of their age, collectors have paid as much as$16,800 for one of them.
Answer: a former colony of Great Britain

Ex Output:
Mauritius is the name of _

Ex Input:
Article: How clean are the nation's homes? According to a survey by CIF, there's room for improvement all over Britain. Love or hate it -- cleaning your home is one job you simply can't ignore . But that's not to say everyone spends the same amount of time or effort on making their places spotless. A new survey by CIF-- experts on making tough cleaning jobs easier---- shows that when it comes to washing windows or cleaning the oven ,where you live in the UK it may show how much effort you put into the task. BATHROOM 25% of men have never cleaned the toilet -- but those in Wales are the worst. Nearly four in 10 Welsh men said they never cleaned anywhere in the house. Hate cleaning the shower head? You're not alone -- a quarter of a million Brits say the same. 20% of Scots regard window-cleaning as their most hated job. KITCHEN 36% of people in the south-east say cleaning the cooker is their hated task. 68% of those in the north-east spend more than six hours a week cleaning their homes -- especially the kitchen -- in sharp contrast to the 49% of Welsh and West Country folk, who put their hands up to cleaning for under an hour. BEDROOM 18% believe cleaning starts here: that's the percentage of women who clean wearing their dressing gowns. 51% of women in the north-west may be staying in bed and giving their husband a cuddle --as a thank-you for helping them clean. In other places, there are far fewer helpful men. LIVING ROOM 32% of women in the north-east turn up the stereo to help make the dusting more fun. Almost six in 10 women agree, however, that cleaning is seriously energetic exercise. SHIFT THE DIRT WITH CIF It's no secret that the right cleaning products will cut cleaning time and effort in half-- and no one knows that better than How Clean Is Your house? Presenters Aggie Mackenzie and Kim Woodburn. For solutions to all your cleaning needs, here are some of CIF's top tips: *Stop a lot of build-up on your shower head--give it a quick squirt with CIF bathroom spray once a week. *Stainless steel tools seem to need endless cleaning. The CIF Wild Qrchid Qxy-Gel-it lifts dirt easily and leaves the kitchen smelling fresh and clean. *Cooking outside? CIF cream will get your barbecue spotlessly clean, ready for those long, lazy summer evenings. Perfect!
Answer: advertise a certain product

Ex Output:
The main purpose of this passage is to _ .