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.

Q: Article: I was thirteen when my father got hurt.Looking back over the years, I sometimes wonder what I could have done differently that day.Spit twice over my shoulder when I saw the single magpie , maybe.But that's the thing about superstitions .You don't know how much power they have until you break them. We lived in a dark shabby house in Bucks.Wood blocks laid over dirt on the floor.That part of England was full of cherry trees.Chalky soil. The rice had caught in the bottom of the pot that morning at breakfast and all I could smell was burned rice.Even now when I think of that day I have the taste of burned rice in my mouth. "I'm going to cut down the old cherry tree," my father announced. "You've been saying that for years," said my mother lightly touching the end of her nose.Her nose ran all year long.Her arms rested on the table, a cup of tea placed between her hands, steam rising into the air."You'll never get round to it." My stomach, balled into a tight little knot relaxed itself. "Millie's going to cry if you cut it down," said my younger brother, Simon, his eyes bright as a fox."Silly Millie, silly Millie." "Hold your noise," said my father patting Simon on the head."And put back that butter.That's a week's ration you've got on your plate." "The war's over," said Simon in a low voice."We haven't had rationing for ages." Simon was right.Even sugar had come off points.However, we still occasionally received food parcels from distant cousins in Canada. My father glared at him and then went on. "Pigs.Burt says he'll come and help me take the tree down if he can have some of the wood." "No," I said springing to my feet."You can't do it.That's my tree.Always has been.Always will be.I won't let you." Tom, took a piece of toast, watching my reaction.My older brother, he knew what the tree meant to me. "Now then, Millie," said my father softening his face."That tree's wild.It's in the way."
Answer: 3.

A: According to the passage, how many kids does the family have at least?
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Q: Article: As many people hit middle age, they often start to notice that their memory and mental attention are not what they used to be. We suddenly can't remember where we put the keys just a moment ago, or an old friend's name, or the name of an old band we used to love. It happens to most of us, but is it unavoidable? Scientists are increasingly showing that there's actually a lot that can be done. It turns that the brain needs exercise in much the same way as our muscles do, and the right mental workouts can improve our basic cognitive functions. Now, a new San Francisco Web-based company has taken it a step further and developed the first "brain training program" designed to actually help people improve and regain their mental sharpness. Called Lumosity, it was designed by some of the leading experts from Stanford University. Lumosity is far more than an online place to exercise your mental skills. That's because they have combined these exercises with a Web-based program that allows you to systematically improve your memory and attention skills. Apparently it works. One study showed students improved their scores on math tests by 34 percent after using Lumosity for six weeks, greater gains than those made by other students in the same class, who were not training with the Lumosity program. The company says its users have reported clearer and quicker thinking, improved memory for names, numbers, directions, increased alertness and awareness, high mood, and better concentration at work or while driving.
Answer: To improve students' scores on test.

A: What is the purpose of Lumosity?
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Q: Article: The Beijing International Marathon has acquired a new name among some disappointed participants: Smogathon. About 30,000 runners, many from other parts of China or abroad, awoke in the Chinese capital on Sunday to an orange sun glowing weakly through a dirty haze . _ . But no one cancelled on the advice of the organizers, the Chinese Athletic Association and the Beijing Municipal Bureau of Sports, because those organizations did not call it off. That has made participants call the International Association of Athletics Federations (IAAF), which has approved the 26-mile, or 42-kilometer race, to set air quality standards in the future to avoid damaging the runners' health. The association could not be reached by telephone on Sunday. "Does the IAAF have guidelines?" asked Chas Pope, a British engineer who took part in the marathon on Sunday. "If they don't, they should consider it," said Mr. Pope, who has lived in Beijing for 11 years and runs several long-distance races each year. "It's meant to be fun and good for your health," Mr. Pope said of the marathon. "But in such air, it's just ridiculous to be running," he said. He abandoned the course. "Most of my overseas friends pulled out," he said. "And quite a few of my Chinese friends too, but a lot didn't. I think they don't know as much about the health impact." Images on Twitter and Chinese social media showed Chinese runners wearing a variety of face protections, from light cloth masks to World War I-style gas masks. Still many completed the race without masks. "Today's race should definitely have been called off or rescheduled," said Zhang Kai, Beijing-based campaigner with Greenpeace East Asia. "What happened today to this sports even is just another reminder to the government that much remains to be done to China's energy and industrial structure to solve pollution," said Mr. Zhang. "If the battle against pollution is a marathon, it is now time to catch up on speed." In the end, the race was won by two Ethiopians: Girmay Birhanu Gebru won the men's race in 2 hours, 10 minutes and 42 seconds while Fatuma Sado Dergo won the women's in 2 hours, 30 minutes and 3 seconds, breaking Chinese women's advantage of the race for the last 22 years. The favored Chinese woman runner, Gong Lihua, told China News Net that the smog didn't affect her too much but it interfered with many people's ability to sweat, affecting their performance.
Answer: To appeal to it to set air quality standards in the future.

A:
Why did participants call the IAAF?
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