instruction:
Given a paragraph, generate a claim that is supported by the given paragraph. 1) The claim must contain information from within the paragraph. 2) A sentence within the paragraph can be used as a claim. 3) The claim should not have contradictions within the paragraph. 4) The claim should be at most one sentence long.
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Seasoned explorer Robert Swan and his 23-year-old son Barney will begin their eight week, 600-mile expedition on Wednesday, hoping to show renewable energy can work in extreme conditions and prove a viable alternative to fossil fuels. "For the first time in history we will be surviving only on renewable energy. It's never been done," 61-year-old polar veteran Swan, the first person to walk to both the North and South poles, told Reuters. The Swans' 5,000 daily calorie intake will come from sustainable and energy-giving foods, such as grains and almond bars, to help them overcome temperatures of -40 degrees Celsius and the obvious risks of frostbite, altitude sickness and snow blindness. Perpetual sunlight will charge the solar panels, which will power a NASA-designed ice melter to provide them with enough water for drinking and cooking. "Water is gold down in Antarctica, without it you're going to be dying pretty quickly, as dad always reminds me," said Barney Swan. While their aim is to complete the trek using just solar energy, under extreme weather conditions they'll turn to an advanced biofuel made out of wood chip waste. "The fuels have been tested to minus 60 degrees Celsius...it won't get as cold as minus 60. We may get minus 40 which is, trust me, cold enough," the elder Swan said.
answer:
Father-son team plans Antarctic trek powered by renewable energy.

question:
"Harrowing images of wooden caskets being lowered into mass graves in New York City circulated on social media as the city responded to the COVID-19 pandemic. The images and related video footage are accurate depictions of recent burials on Hart Island in the Long Island Sound. That said, there have been some misconceptions about the mass graves. Posts about the grave site were flagged as part of Facebook's efforts to combat false news and misinformation on its News Feed. (Read more about our partnership with Facebook.) First, mass burials didn't begin on Hart Island during the COVID-19 pandemic. The city has used the location as a public cemetery for over 150 years, burying unclaimed people and those whose loved ones can't afford private burials. Second, not all locals who die from COVID-19 are being buried there, as some posts have suggested. The site is still designated for deceased people with no known next of kin. But as the city struggles with the mounting death toll amid the pandemic, burials on the island have dramatically increased in recent weeks. There are usually about 25 burials on the island each week, the New York mayor's press secretary Freddie Goldstein told CNN. But that number has climbed to nearly 25 each day. The island's interment operation is managed by the city's Department of Correction, and inmates usually assist in the burials. But that has changed since the pandemic. DOC spokesperson Jason Kersten has said that city inmates are not currently involved with the burials: ""For social distancing and safety reasons, city-sentenced people in custody are not assisting in burials for the duration of the pandemic. Contracted laborers are performing this important work under DOC supervision,"" according to a report by the Gothamist. Bodies are ordinarily held at the city's morgues anywhere from 30 to 60 days, Goldstein said. But to make room for the influx of deceased individuals during the pandemic, the city's medical examiner's office announced a new policy of holding unclaimed bodies for only up to 15 days before they are transferred to the island. New York City's Hart Island has been used as a public cemetery for unclaimed bodies since the 1800s, but the city's staggering death toll amid the COVID-19 pandemic has dramatically increased the number of burials on the island. Social media posts about the burials are mostly accurate, but many need additional information."
answer:
Images show COVID-19 victims being buried in mass graves in New York City.

question:
It is rare to see a story include costs of what might be viewed as inexpensive supplements, but this story included the costs at least of vitamin D supplements. From a purist's perspective, we wish the story had quantified the benefit seen from exercise. We're told that adding supplements to the exercise program didn't provide any extra benefit. But just what was the degree of benefit from exercise? We're never told. In a sense, the story was all about a finding that might help people avoid the "harm"of thinking that supplements do more for them than they actually do. The story was very clear on what the study showed and did not show, and what the take-home ramifications were. The story cited clear numbers and broke down categories of older women, white men and black men. The story cites the researchers' published findings, then turns in large part to an independent expert to evaluate the evidence. At least the story gave some broad contex about other approaches to prevent bone-thinning: "To build bone density, weight-bearing exercise is needed, such as running or weight-lifting, according to the NIH. To reduce the risk of bone weakening, the NIH recommends not smoking, drinking less alcohol and exercising more. Zaidi said that both vitamin D and calcium are extremely important for human health, so people should follow the previous vitamin D and calcium recommendations." The availability of calciium and vitamin D are not in question. There was room for improvement here. The story could have done a better job of putting the new finding into the context of past research in this field. It's clear the story didn't rely solely on a news release.
answer:
Extra calcium, vitamin D no bone booster for men