Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

Q: Paragraph: "This is the only of the five stories to actually put a dollar figure on the classes. ""Even the cost of a class, which can top $50 a month, is modest compared with the cost of many medications. And unlike drugs, tai chi had no harmful side effects, she says."" Unlike the AP story, which made the mistake of saying that ""symptoms improved significantly for the tai chi group and little for the others,"" this story, at least, presents some numbers. The trouble is, those numbers are in relative terms. So, instead of saying that three months after the classes ended, 27 patients who took tai chi classes felt better and 17 who tried other therapies also felt better, it presents the difference as 82% versus 53%. That seems more dramatic. Absolute data would be more meaningful. Why make the reader do the math? The story is one of the few stories that covered this study to actually point out that""unlike drugs, tai chi had no harmful side effects."" In the end, because of the comments from Gloria Yeh, the story puts the appropriate caveats on the findings. This sentence does a great job of summarizing some of the problems with the study: ""Yeh notes that researchers don't know which aspects of tai chi were most helpful: the exercise, deep breathing, relaxation exercise, meeting new friends or learning from a charismatic teacher."" This story actually spends too little time talking about the condition itself. The AP devoted a whole paragraph in an eight paragaph story to the condition, and the LA Times led its piece by describing the disease. USAToday instead went with a very nice description of tai chi, putting the emphasis on the beauty and simiplicity of the therapy rather than the difficulty clinicians have had correctly diagnosing and treating fibromyalgia. This is the only story to include the phrase ""white crane spreads its wings"" or anything like that. The story doesn't actually quote any of the authors and instead quotes two outside experts, one of whom wrote an accompanying editorial. It fails to fully attribute the comments made by ""Callahan."" It appears that the writer meansLeigh F. Callahan, who just completed a study of tai chi for arthritis and was quoted by other reporters. (How did this slip through copy editing? Was this a slip-up only in the online version?) But we can't give credit to an independent source that the story doesn't adequately identify. The story does not compare the therapy to existing alternatives or even discuss existing alternatives, aside from a passingreference at the very end to medications. This is the only one of the five stories to note that ""A study in 2007 from the National Institutes of Health found that 2.3 million American adults had used tai chi in the past year."" This doesn't tell you whether tai chi classes areas readilyavailable in Oklahoma as they are in New Mexico, but it does give you a sense of how popular they are. It is unclear from this story whether tai chi has been studied before for other conditions. It has. It also is unclear what fibromyalgia patients now do for therapy. The LATimes, for example, pointed out that patients in the study stopped taking drugs for treatment, for example. The story does not rely on a news release." Claim: Tai chi may ease fibromyalgia pain

A: "The story does two things better than all the other stories. It puts a dollar figure to the cost of tai chi therapy, and it gives people a better sense of how popular tai chi is. It could have done a better job evaluating the evidence and providing some absolute numbers to help readers decide how seriously to take these results. Why not just give the absolute numbers? How many out of how many? Why make the reader do the math? ""79% of tai chi participants said their symptoms had improved, compared with 39% of those in the educational classEven three months after the classes ended, 82% of tai chi students still felt better, compared with 53% of the comparison group."" Sure, the denominators are in the story but we shouldn't need to pull out the calculator to figure out 79% of x, vs. 39% of x."
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Q: Paragraph: Police are bulking up their presence at tourist hot spots and on the roads over the four-day holiday, officials said, urging people to stay home during what is normally a popular time for trips. The appeal came as the Swiss death toll continued to rise and neighbouring Austria prepared to relax its own lockdown. "It is not the moment to drop our guard," President Simonetta Sommaruga told journalists after visiting Lausanne University Hospital. "We do not have a magic wand to bring back our lives from before, but we are already preparing for after the pandemic," she added. The Swiss death toll from the new coronavirus rose to 641 from 584 people on Monday. The number of positive tests passed 22,000. Sommaruga said it remained vital that people comply with the emergency measures, which include bans of gatherings of more than five people and shutdowns of schools and many businesses. "It will be difficult, very difficult with the Easter holidays coming up. We are still very far from normal," she said. The government was working on options to relax its restrictions, she added, without giving details. A decision on how to proceed is due by next week. Daniel Koch from the public health agency said the emergency measures had proved their worth, and great care had to be exercised in how they were phased out. "The challenge now is to hold out until the end, because we are halfway there at best," Koch told a news conference in Bern. Driven by the shutdown, the Swiss unemployment rate jumped to 2.9% in March and was set to rise further. The Swiss army has conducted its biggest mobilisation since the Second World War to aid the emergency services, although its deployment had not been without hitches. [L8N2BV5BR] The police called on people to postpone trips to the mountains or the hard-hit southern canton of Ticino on the Italian border so as not to burden the emergency services. "The goal is not to punish but to be effective and to prevent the spread of the virus," said Stefan Blaettler, head of the association of regional police chiefs. "Better days will come more quickly if we stick to the rules," he added. Claim: Swiss urge public to stick to anti-virus measures over Easter.

A: Switzerland's president called on the public to stick with emergency measures designed to halt the spread of the new coronavirus, saying on Tuesday the country remains "very far from normal" ahead of the long Easter weekend.
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Q: Paragraph: Now aged 56, two years after his retina was deliberately infected with a virus carrying a gene to correct a protein deficiency that was destroying its cells, he is a regular on the tennis court and has a successful career in law. "For the last 30 years I've been living under the insidious inevitability of going blind," Stroh told reporters at a briefing about his experimental treatment. "Now there is a very real prospect I will continue to be able to see." Stroh is one of a handful of patients with an inherited cause of progressive blindness called choroideremia who took part in an early stage trial of a potential gene therapy treatment designed to correct a genetic defect that means retina cells gradually die. Although the results are from only six patients in a very early stage Phase I trial, researchers said they suggest more studies should be done to see if similar gene therapies could be developed for other more common genetic causes of blindness such as macular degeneration and retinitis pigmentosa. Choroideremia is caused by a mutation in a gene that makes a protein called REP1. It affects an estimated 1 in 50,000 people and causes sufferers - mainly men - to lose their sight gradually as the cells in the retina degenerate. There is currently no licensed treatment for the condition and eventually the photoreceptor cells - the rods and cones in the retina that respond to light by sending signals to the brain - die completely, leading to blindness by middle age. In the trial, a team led by Robert MacLaren of the University of Oxford, a consultant surgeon at the Oxford Eye Hospital, injected the patients' retinas with a vector - in this case a genetically engineered virus - to deliver a corrective copy of the gene to the appropriate part of the eye. "The virus has to be delivered to the target cells, which are the cells of the retina," MacLaren explained. To do that, the surgeon performs an operation similar to cataract surgery in which the patient's retina is detached and lifted, and the virus is then injected underneath with a fine needle. "The virus goes in, infects the cells and puts the protein back into the cells - so we're harnessing the capability of the virus to infect cells and deliver its DNA," he said. "This is the exciting thing about gene therapy," said MacLaren, whose trial results were published in The Lancet medical journal on Thursday. "We're talking about a single one-off genetic correction ... that has long-standing effects that so far have not been shown to diminish." The results showed that of the six patients treated - each of them only in one eye so the other could act as a comparison - the two with the least good sight before the gene therapy had significantly improved vision six months later. In the other four patients, whose vision was only slightly impaired before treatment as they were at earlier stages of the condition, the results confirmed the gene therapy is safe, with the virus delivering its DNA without damaging the retina. "It is still too early to know if the ... treatment will last indefinitely," MacLaren said. "But we can say that the vision improvements have been maintained for as long as we have been following up the patients, which is two years in one case." He stressed that the therapy is still in the experimental stage, with more trials likely to take up to five years before it could be submitted for a licence with a view to making it available to all patients. "If we were able to treat people early, get them in their teens or late childhood, we'd be getting the virus in before their vision is lost," he said. "If the treatment works, we would be able to prevent them from going blind." Claim: Experimental gene therapy improves sight in patients going blind.

A:
Toby Stroh was in his 20s when his doctor told him he would go blind in his 50s, and his years of playing tennis and being able to drive or work could be gone long before that.
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