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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.
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Article: Mrs. Janes gave music lessons at a school.She had a good voice and enjoyed singing, except that some of her high tones sound like a gate that had forgotten to oil.Mrs. Janes knew her weakness well, and took every chance she could find to practise these high notes. As she lived in a small house, where she could not practise without disturbing the rest of the family, she usually went for long walks along the country roads whenever she had time and practised her high notes there.Whenever she heard a car or a person coming along the road, she stopped and waited until she could no longer be heard before she started practicing again, because she was a shy person. One afternoon, a fast, opened car came up behind her so silently and so fast that she didn't hear it until it was only a few yards from her.She was singing some of her highest and most difficult tones at that time and as the car passed, she saw an anxious expression came over the driver's face.He stopped his car suddenly, jumped out and began to examine all his tyres carefully. Mrs. Janes didn't dare to tell him what the noise he had heard really was, so he got back into the car and drove off.
Answer: She sang terribly, she was no singer at all.
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How did Mrs. Janes sing?

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Article: Researchers around the world have been trying their hand at making better use of the huge amount of wind energy available in nature to produce clean energy. Apart from this, studies are being carried out to harness usable wind energy produced by man-made technologies. One useful source identified by Indian inventor Santosh Pradhan about two years ago is a speeding train, which produces fierce wind that can be transformed into electricity. According to Pradhan's proposal, with a few small improvements in existing trains running in Mumbai, the largest city in India, at least 10,000 megawatts of electricity could be harvested each day. Building on this principle, designers Ale Leonetti Luparinia and Qian Jiang from Yanko Design have created a device called T-Box that harnesses wind energy from speeding trains. T-Box can be placed within the railway tracks. It is half-buried underground between the concrete sleepers , which does not disturb the normal train operating at all. According to Yanko, around 150 T-Boxes can be fitted along a 1,000-meter railway track. A train running at a speed of 200 kph can produce winds blowing at 15 miles a second. Based on this calculation, 150 T-Boxes can produce 2.6 KWH of electricity per day. The T-Box's design won a silver medal in last year's Lite-On Awards and was exhibited last summer at the Xue Xue Institute in Taipei, Taiwan Province. Though the figures look impressive, it is important to remember that the design is still at a conceptual stage and hasn't taken into account issues such as pieces of waste material produced by the device and the efforts and costs involved in the maintenance of the device. We can expect the technology to see the light of the day only after it clears these issues. If so, rail travel, one of the greenest forms of travel, will become greener and more energy-efficient.
Answer: It is based on Pradhan's idea.
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What can we learn about T-Box?

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Article: If the hackings taught us anything in 2014, it's actually nothing. Password management firm SplashData released its list of the worst passwords of the year and it's just as terrible as you'd think. The most common leaked password in 2014 was "123456," followed by "password" -- both topped the list the year before, too. While numbers were as popular as ever as passwords, sports terms like "baseball" and "football" were used more often. Birthday years were common too (especially 1989, 1990, 1991 and 1992) and names like "Michael", "Jennifer" and "Hunter" are also among the top 100 worst passwords of 2014. Here's a look at the top 10 worst passwords of the year: 1. 123456 (Unchanged from 2013) 6. 234567890 (Unchanged) 2. password (Unchanged) 7. baseball (New) 3. 12345 (Up 17) 8. dragon (New) 4. 12345678 (Down 1) 9. football (New) 5. qwerty (Down 1) 10. monkey (New) This year's worst passwords are painfully weak, but what were once considered clever password strategies -- using symbols, capitalizations, the number 3 in place of the letter "e" -- are old tricks. It's now recommended to pick a different password for each account you use -- you wouldn't use the same key in all of your locks, and the same goes for passwords. Companies like Facebook, Twitter and Apple are now trying to make hacking more difficult on their services by offering two-factor authentication , which is basically like double locking your door at night. Each time you want to log into that account, the company will send a code to your phone -- it changes after each login attempt, so hackers would have to be in physical possession of your smartphone to know the code.
Answer: People are getting more experienced in picking their passwords.
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What can we learn from the text?