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.

[Q]: Article: The Goldman Environmental Foundation recently recognized a group of individuals for their efforts to protect the environment. Each year, the American-based group honors environmental activists from six different areas. The first three winners of the 2012 Goldman Prize are from Kenya, the Philippines and China. The Goldman Environmental Foundation says Ikal Angelei is a hero to those who live around Lake Turkana. The Kenyan woman received the award because of her efforts to stop a dam project on a river in Ethiopia. Critics say the dam will harm the lake and restrict the flow of water for people who live nearby. The Philippine island of Mindoro is home to those who depend on the area's natural resources for food and jobs. Edwin Gariguez became concerned when a European company announced plans to mine for nickel on the island. The Roman Catholic minister said waste materials from the mining project would pollute the water and destroy the forests. So he started a campaign to stop the project. In China, Ma June is working with businesses to clean up their pollution. He formed a group that collects information about pollution, and publishes it on the Internet. The Goldman Prize was also awarded to activists from Argentina, Russia and the United States. Sofia Gatica of Argentina is from a town where farmers commonly use pesticide products to protect soybean crops from insects. The town also has a high rate of cancer. Miz Gatica believed that pesticide use was responsible for the death of her baby. She worked with other mothers to get government officials to ban the use of chemicals near populated areas. Evgenia Chirikova objects to the plans to build a road through a protected forest just outside Moscow. She has demanded that Russian officials redirect the road away from the forest. She and her followers have been arrested for their activities. However, their campaign has gained widespread public support. The sixth winner is American Caroline Cannon -- a community leader in Point Hope, Alaska. Miz Cannon is fighting to keep Arctic waters safe from oil and gas exploration.
Answer: Ma June is trying to stop oil and gas exploration
[A]: We can know from the passage that _ .

[Q]: Article: Hundreds of years ago, a Roman army came north from England to make war on Scotland. The Scots, a brave people, love their country. They fought hard to drive the enemy out of Scotland. But there were too many of the Romans. It looked as if the Romans would win. One night, the leader of the Scots marched his soldiers to the top of a hill. "We will rest here tonight, my men," he said, "Tomorrow we will fight one more battle. We must win, or we will die." They were all very tired. So they ate their supper quickly and fell asleep. There were four guards on duty, but they were very tired, too, and one by one, they fell asleep. The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they went up the hill. Closer they came to the sleeping Scots. They were almost at the top. A few minutes more the war would be over. Suddenly, one of them put his foot on a thistle . He cried out and his sudden cry woke the Scots. In a minute they were on their feet and ready for a battle. The fighting was hard, but it did not last long. The Scots wiped out the Romans and saved Scotland. The thistle is not a beautiful plant. It has sharp needles all over it. Few people liked it. But the people of Scotland liked it so much that they made it their national flower.
Answer: came to the north Scotland from England to make war on Scotland
[A]: Hundreds of years ago, the Romans _ .

[Q]: Article: Harry Houdini was one of the greatest American entertainers in the theater this century. He was a man famous for his escapes from prison cells, from wooden boxes floating in rivers, from locked tanks full of water. He appeared in theaters all over Europe and America. Crowds came to see the great Houdini and his "magic" tricks. Of course, his secret was not magic or supernatural power. It was simply strength. He had the ability to move his toes as well as he moved his fingers. He could move his body into almost any position he wanted. Houdini started working in the entertainment world when he was 17, in 1891. He and his brother Theo performed card tricks in clubs in New York. They called themselves the Houdini Brothers. When Harry married in 1894, he and his wife Bess worked together as magician and assistant. But for a long time they were not very successful. Then Harry performed his first prison escape in Chicago in 1898. Harry persuaded a detective to let him try to escape from the prison, and he invited the local newspapermen to watch. It was the publicity that came from this that started Harry Houdini's success. Harry had fingers trained to escape from handcuffs and toes trained to escape from ankle chains. But his biggest secret was how he unlocked the prison doors. Every time he went into the prison cell, Bess gave him a kiss for good luck and a small skeleton key, which is a key that fits many locks. She passed it quickly from her mouth to his. Harry used these prison escapes to build his fame. He arranged to escape from the local prison of every town he visited. In the afternoon, the people of the town would read about it in their local newspapers, and in the evening every seat in the local theater would be full. What was the result? Worldwide fame and a name remembered today.
Answer: his unusual ability and skeleton key
[A]:
According to the passage, Houdini's success in prison escapes depends on _ .