instruction:
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.
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Paragraph: An image graphic purportedly featuring an excerpt from a speech President John F. Kennedy was scheduled to deliver on the day that he was assassinated was recirculated on social media in November 2018:  These lines were part of a speech JFK was slated to make to the Texas Democratic State Committee in the Municipal Auditorium in Austin, Texas, on the evening of 22 November 1963. President Kennedy never had the opportunity to deliver that speech, however, as he was assassinated earlier that day while his motorcade drove through Dealey Plaza in Dallas. A transcript of this undelivered speech is available via the John F. Kennedy Presidential Library and Museum. The excerpt included in this meme comes from the penultimate paragraph of that text: Finally, I said in Lubbock in 1960, as I said in every other speech in this State, that if Lyndon Johnson and I were elected, we would get this country moving again. That pledge has been fulfilled. In nearly every field of national activity, this country is moving again — and Texas is moving with it. From public works to public health, wherever Government programs operate, the past 3 years have seen a new burst of action and progress — in Texas and all over America. We have stepped up the fight against crime and slums and poverty in our cities, against the pollution of our streams, against unemployment in our industry, and against waste in the Federal Government. We have built hospitals and clinics and nursing homes. We have launched a broad new attack on mental illness and mental retardation. We have initiated the training of more physicians and dentists. We have provided 4 times as much housing for our elderly citizens, and we have increased benefits for those on social security. Almost everywhere we look, the story is the same. In Latin America, in Africa, in Asia, in the councils of the world and in the jungles of far-off nations, there is now renewed confidence in our country and our convictions. For this country is moving and it must not stop. It cannot stop. For this is a time for courage and a time for challenge. Neither conformity nor complacency will do. Neither the fanatics nor the faint-hearted are needed. And our duty as a party is not to our party alone, but to the Nation, and, indeed, to all mankind. Our duty is not merely the preservation of political power but the preservation of peace and freedom. So let us not be petty when our cause is so great. Let us not quarrel amongst ourselves when our Nation’s future is at stake. Let us stand together with renewed confidence in our cause–united in our heritage of the past and our hopes for the future — and determined that this land we love shall lead all mankind into new frontiers of peace and abundance. Kennedy was expected to deliver two speeches in Texas on the day that he was assassinated. The other, which was scheduled to take place at the Trade Mart in Dallas, was “recreated” by the Times of London and the creative Irish agency Rothco in March 2018: It took eight weeks to bring to life the 2,590 words John F Kennedy never got to speak. Sound engineers pulled 116,777 sound units from 831 of his speeches and radio addresses. These units were then split in half and analysed for pitch and energy. The half units, known as phones, were each about 0.04 seconds long and had to be tested next to each other to ensure that they did not clash. The W sound in weapons, for example, is not the same as the W sound in words. A portion of “JFK Unsilenced” recreation can be glimpsed below: Claim: "A passage from a speech JFK was supposed to deliver on the day he was assassinated stated that ""our duty as a party is not to our party alone, but to the Nation, and, indeed, to all mankind."
answer:
The words of President John F. Kennedy that the world never got to hear.


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Paragraph: The article did not discuss costs. Screening mammograms impose a significant cost on the U.S. health care system and insurers, particularly Medicare. The story detailed the relative harms of earlier mammograms, but did not translate those percentages into absolute numbers. For instance, women who were diagnosed with breast cancer 25 months or more after their last mammogram were “50 percent more likely” to need chemotherapy, “32 percent more likely” to need mastectomy, and “66 percent more likely” to need lymph nodes removed. However, relative risk can be misleading, sometimes inflating numbers to sound scarier than when absolute numbers are used. Also, we don’t know what kind of risk these women had at baseline, so it’s hard to know if they were higher risk. The story made no mention of the harms of earlier or more frequent screening, which have been documented time and time again. More screening can mean more false positives or more finding of breast changes that lead to more testing, such as biopsies, more costs, and more worry. The story did make clear some of the weaknesses of the study: The study found an association but did not prove causality and the study population was limited to a single health care institution. The story also mentions that the findings were presented at a meeting, which means they have not undergone peer-review. The story does not directly engage in fear-mongering. However, some of the quotes advocating for earlier and more frequent screening play into a scenario that breast cancer is lurking in every woman. A discussion of what a woman’s average lifetime risk is would have been helpful. The story quotes the study author and an outside source. The story makes clear that different advisory groups have differing guidelines for what age to start getting mammograms (40 or 50 years old). It would have been nice if the story had included examples of what makes someone higher risk or not (personal cancer history, family history, history of radiation), but we think this was satisfactory. We believe that mammograms are well-known to be widely available. And the earlier and more frequent screening described here is not earlier or more frequent than what many guidelines recommend, so would not be expected to be denied by health insurers. The story makes clear the distinctive aspects of this study —using avoidance of more aggressive treatment regimens as a deciding factor, as opposed to the more extreme avoidance of cancer death. The story goes beyond what was contained in a news release on the presentation at the American Society of Breast Surgeons annual meeting. Claim: Earlier Mammograms May Mean Less Need for Aggressive Treatments
answer:
This HealthDay news story reports on findings among women diagnosed with breast cancer: those who had longer intervals between mammograms end up getting more aggressive treatments, including chemotherapy and surgery. The story would have been stronger had it described the findings using absolute rather than relative numbers. But, we were glad to see an independent source offer some reservations about the small observational study raised. A final note — the image accompanying the story was laughably unrealistic. Mammograms are the primary screening method for detecting breast cancer. However, when to start getting mammograms and how often to get screened have been subjects of controversy for the past decade. That’s because the data on how to balance risk of developing breast cancer and the risk of harms from screening (unnecessary tests and procedures) are interpreted differently by doctors and other experts. A story that adds new data to the field and that might tip current guidelines one way or the other is newsworthy.


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Paragraph: That’s the conclusion of scientists from the University of Bristol and the University of California at Davis who dressed horses in black-and-white striped coats to help determine why zebras have stripes. The researchers found that fewer horseflies landed on the cloaked horses than on the ones without striped coats, suggesting that zebra stripes may offer protection from blood-sucking insects that can spread disease. “This reduced ability to land on the zebra’s coat may be due to stripes disrupting the visual system of the horse flies during their final moments of approach,” said Martin How, a research fellow at the University of Bristol. “Stripes may dazzle flies in some way once they are close enough to see them with their low-resolution eyes.” From a distance, the flies were equally attracted to both horses and zebras, with the same number of insects hovering around both types of animals. But when the flies got closer, things get dicey. The flies landed less frequently on the zebras and the horses covered in striped coats. “Once they get close to the zebras, however, they tend to fly past or bump into them,” said Tim Caro, a professor in the U.C. Davis Department of Wildlife, Fish and Conservation Biology. “This indicates that stripes may disrupt the flies’ abilities to have a controlled landing.”  The work , reported in the journal Public Library of Science ONE, seeks to answer one of the oldest questions in zoology — why do zebras have stripes? Charles Darwin had his theories. So did British naturalist Alfred Russel Wallace. But the scientists from Britain and California sought to examine that question by studying both horses and zebras at the Hill Livery in Britain, which works with zoos in Europe on conservation for zebras. That provided a controlled environment where the horses could be dressed up and closely observed to test the theory. “It’s one of those pieces of research that you say, ‘why hasn’t someone done this before?’” said Tim Woodfine, the director of conservation at Marwell Wildlife in southern England. He did not take part in the study. “It’s simple and neat. I think it’s a great piece of work,” he said. How, an expert on animal vision, told The Associated Press on Thursday there are reasons to be “quite excited” about the research, which he said helps scientists understand what’s happening in the mind of a fly. The insights have broader implications for technology such as driverless cars, which are inspired by insect vision. If stripes disrupt a fly, they might also disrupt a driverless car’s systems, according to How. “What we needed to do is get our mind into the eye of the fly,” How said. “They have very different eyes from us.” Erica McAlister, the senior curator of flies and fleas at the Natural History Museum in London, said the research contributes information to a subject long debated by scientists. “We’ve been arguing about zebra stripes for 75 years,” said McAlister, who was also not involved in the study. But there are also human applications. How says from now on, he’s wearing stripes while riding his bicycle during horse-fly season. Caro hopes the study will underscore the wonders that remain to be discovered in the natural world. “If we can try to pique the public’s appreciation of the wonders of nature, they’ll be less cavalier about destroying it,” he said. “That’s my hope.” ___ This story has been corrected to show the verb in the closing quote should be “pique,” not peak. Claim: Why do zebras have stripes? Perhaps to dazzle away flies.
answer:

Zebra stripes are dazzling — particularly to flies.