TASK DEFINITION: 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.
PROBLEM: Article: Cheaters called "pirates" often use camcorders and cell phones to make illegal copies of blockbusters in the local theater. These pirates then sell those recordings on the street or over the Internet for very low prices. Some share them for free. "It's unfair for people to pirate movies, " says 15-year-old Hadaia Azad Ezzulddin. Movie piracy "takes money out of the pockets of thousands of people in the movie industry," she notes. Victims include famous actors and directors as well as local theater owners and their employees. Hadaia came up with an idea that could help stop movie piracy. Hadaia's idea uses infrared light. This range of light is invisible to the human eye. It is visible, however, to many types of cameras. Theater owners could place small infrared lights on their movie screens. The lights would not disturb people watching the movie. It would, however, distort the recordings made by many types of cameras. To test her idea, Hadaia built a box with a movie screen inside. Then, she projected images on that screen through a hole in the box. She took recordings of those images, using nine different types of cameras. These included the types found in cell phones as well as camcorders. During some tests, she also turned on light emitting diodes , or LEDs. The LEDs were embedded in a certain place behind the movie screen. They gave out infrared light. Sure enough, she showed, a pirated movie included odd stripes or spots if it had been recorded while the LEDs were on. It might be possible to use the LEDs to flash the date and time on the movie screen. The information would then appear in the illegal recordings. Theater owners or police might use the information to track down the pirates. Cutting down on piracy might get more people into theaters to watch the real movie instead of an illegal copy. Six out of every ten films now produced aren't profitable. They don't make enough money to recover how much was spent to make and market them. Such a poor payback can discourage filmmakers from producing anything but the types expected to become blockbuster hits. It might also keep smaller theaters from showing a wider variety of movie types.
Answer: make illegal copies of movies unpleasant to see

SOLUTION: Infrared lights are put on the movie screens to _ .

PROBLEM: Article: Hercule Poirot looked over the small gate which gave admission to Pine Crest. It was a modern nicely-built house. It was on a hill top, and the hill top was planted with a few sparse pines. It had a small neat garden and a large elderly man was watering with a big tin. Spence's hair was now grey all over. He had not shrunk much in girth , though. He stopped watering and looked at the visitor at the gate. Hercule Poirot stood there without moving. "God bless my soul," said Spence. "It must be. It can't be but it is. Yes, it must be Hercule Poirot!" "Aha," said Poirot, "you remember me. I'm grateful." Spence abandoned the watering can and came down to the gate. "What brings you down here?" "What has brought me to many places in my time," said Poirot, "and what once a good many years ago brought you to see me. Murder, Spence." "I'm done with murder since I retired," said Spence, "except in the case of weeds. Killing weeds is never easy as you think, something's always wrong. How did you know where to find me?" he asked as he opened the gate and Poirot passed through. "You sent me a Christmas card. It had your new address on it." "Ah yes, so I did. I'm old-fashioned, you know, I like to send round cards at Christmas time to a few old friends. I'm an old man now." "We both are." "Not much grey in your hair," said Spence. "I take care of my hair with a bottle," said Poirot. "There is no need to appear in public with grey hair unless you wish to do so. By the way, why have you come to live in Woodleigh Common?" "As a matter of fact, I came here to join forces with a sister of mine. She lost her husband, her children are married and living abroad. So I moved in here. Pensions don't go far nowadays, but we do comfortably living together."
Answer: Poirot's recent life

SOLUTION: From their dialogue, we can learn about _ .

PROBLEM: Article: Think of London and you're likely to think of the city's famous bright red double-deckers buses. Think of Thailand's capital city, Bangkok, and the noisy tuk-tuk ( ) may come to mind. Picture the American city of San Francisco and you might see the city's trolleybuses. Imagining what these cities would look like without their red buses, tuk-tuks or trolleybuses is difficult. They are symbols of these cities that make them different from anywhere else in the world. However, these city symbols, which are so loved by tourists, are not always so well loved by their city leaders. City leaders want what is best for their city, which often means the most modern transport. In Thailand, Bangkok city authorities have forbidden new tuk-tuks because they consider them noisy and polluting. However, the ban has largely been unsuccessful, as it has not changed Thai people's preference for the inexpensive tuk-tuks over taxis. In London, the city's first ever mayor got rid of the red double-decker buses, which he thought were old-fashioned, by selling them to other countries. His plan worked, but Londoners were upset to lose the charming old buses they believed represented the best of their city. They made their upset felt, when the major came up for re-election last year. Most Londoners voted for his competitor who promised to bring the bus back. Now an improved version of the double--decker bus will hit London's streets in 2012.. As for San Francisco, several trolleybuses remain in use but mainly as tourist attractions. They are too slow to be used for anything other than scenic trips. City transport symbols may have a place in their city people's hearts, but it seems they are increasingly out of step with the modern world. As Londoners have proved, their continued life depends on people's willingness to fight for their survival.
Answer: Locals' willingness to take the tuk-tuks

SOLUTION:
Bangkok's ban on tul-tuks is unsuccessful due to _ .