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: Roy treads carefully as the water rises to his knees, seeming for a moment to lose sight of his prey. Then in one swift action he steps back, takes aim and shatters the outback calm, and a crocodile, with a single booming shotgun blast. I am definitely not in Sydney anymore. For more than 10 years I have dreamed of photographing the daily lives of Aboriginal Australians in the northern-most tip of the Northern Territory, Australia’s rugged “Top End”. Their Arnhem Land reserve - closer to Bali than Sydney - covers an area of around 97,000 sq km (37,500 sq miles), has a population of around 16,000 and access for non-Aborigines is by invitation only. Australia’s Aborigines are the custodians of the longest unbroken cultural tradition on Earth, having migrated Down Under from Africa via Asia between 40,000 and 60,000 years ago, and connection to the land is practically written into their DNA. But the arrival of European settlers in the 18th century marked the beginning of a painful disenfranchisement. Massacres are still tearfully remembered and today the majority of Aborigines live in abject poverty. Last year, while on patrol with the Indigenous Australian Army unit known as NORFORCE, I met Sergeant Norman Daymirringu, a Yolngu Aborigine, who invited me to go hunting with him near Ramingining, located a bumpy and dusty 600 km drive east of Darwin. Norman is allowed by tradition to share his ancient culture with those he deems worthy, and I was honoured to have been told the Yolngu people’s creation stories and shown their sacred sites. But entering Arnhem Land as a “White Fella” means changing gears and seeing the world through a completely different set of eyes, a great challenge for a photographer. For example, an outsider might struggle to understand a site such as “Dog’s Tongue”, an orange rock amid a barren salt pan, but for Norman it is an integral part of the creation of the universe. The rock has tipped over from its normal position and Norman, as custodian of the land, affords me the rare honor of watching as he puts it back in place, where it has stood for countless millennia. At Yathalamarra, a community consisting of around a dozen houses, we pick up some relatives for the hunt and head on foot to an isolated billabong. With the sun blazing and temperatures reaching 40 degrees Celsius, or 104 Fahrenheit, I am getting pessimistic, when suddenly Roy fires his shotgun. At his feet lies a dead crocodile. Roy pulls the beast from the water, while Marcus keeps lookout. Not far from the shoreline the water starts moving. Suddenly Marcus pounces and, from just beneath the surface, he pulls another crocodile, this one a bleating baby. Roy is nervous about crossing the billabong carrying a heavy dead crocodile, but wanders downstream and grabs a boat hidden in the bushes. Using a stick as a paddle he navigates towards us, throwing the two crocs onto the muddy shore. Wow, its over, I think. We can head off with a great catch and potential feast awaiting. Roy has other ideas: “It’s easier to carry them without all that skin,” he tells me. Any butcher would have been extremely impressed with the skill he showed at filleting this massive beast. The baby was carried out alive. As we are leaving, Roy wraps the intestines in leaves, as nothing that can be eaten is wasted, and he and his sons walk the few kilometers back to the car with crocodile meat and a goanna lizard slung over their shoulders. As for me, I walked away with a unique insight into their culture and some photographs that not many others have had the privilege of taking. Claim: Hunting for pictures, and crocodiles, in remote Aboriginal country.

A: We are deep in a forest crowded by Australian paperback trees, the air thick with humidity but eerily silent save for the screeching of tropical birds, when Marcus shouts: “Look, crocodiles!”    As a Reuters photojournalist, I’m a trained observer, but I can’t see any crocs. I can’t see anything beyond mud and what little water is left in the small billabong. Aboriginal hunters Marcus and Roy, a father and son team, take off running past a herd of water buffalo and by the time I catch up Roy is standing ankle-deep in murky water, his shotgun pointed at the surface. Hang on a minute: wasn’t your son pointing at crocodiles in that water ten seconds ago? Is this safe?
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Q: Paragraph: Depression is one of the most common forms of mental illness, affecting more than 350 million people worldwide. It is ranked by the World Health Organization as the leading cause of disability globally. Treatment usually involves either medication, some form of  psychotherapy or a combination of both. Yet many patients fail to get better and suffer recurring bouts of illness. MBCT was developed to help such people by teaching them skills to recognize and respond constructively to thoughts and feelings associated with relapse, aiming to prevent a downward spiral into depression. In the first large study to compare MBCT and anti-depressants, researchers found little difference in outcomes. In terms of cost, mindfulness training — often viewed as more costly because it requires more time with a trained therapist — was not significantly more pricey, particularly when given in group sessions, the study found. Richard Byng, a professor at Britain’s Plymouth University Peninsula Schools of Medicine and Dentistry, said that, while current standard treatment for chronic depression is to keep taking anti-depressants, many people don’t want to take them for long periods and others want to avoid side-effects. In this study, 424 adults with recurrent major depression who were on maintenance anti-depressant drugs were randomly assigned either to come off their anti-depressants slowly and receive MBCT or to stay on their medication. While 212 patients continued taking their anti-depressants, the other 212 attended eight group mindfulness therapy sessions and were given daily home practice as well as an option to have four follow-up sessions over a 12-month period. Study results published in The Lancet medical journal showed that after two years, relapse rates were similar in both groups — at 44 percent in the therapy group versus 47 percent in the anti-depressant drug group. “Whilst this study doesn’t show that mindfulness-based cognitive therapy works any better than maintenance anti-depressant medication in reducing the rate of relapse ... these results suggest a new choice for the millions of people with recurrent depression on repeat prescriptions,” said Willem Kuyken of Oxford University, who worked with Byng on the research. Claim: Mindfulness therapy as good as medication for chronic depression - study.

A: Mindfulness-based cognitive therapy (MBCT) may be just as effective as anti-depressants in helping prevent people with chronic depression from relapsing, scientists said on Tuesday.
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Q: Paragraph: The story does not mention the cost of PSA testing or the costs of prostate cancer treatment. Overtesting that leads to overtreatment has significant cost implications and should be part of the story. The story provides percentages of the cases that are thought to be overdiagnosis, that is cancers that were found by PSA testing that would never have gone on to be detected or cause a problem if they had not been found by screening. The story mentions several harms of PSA testing, including false positive results and overdiagnosis, both of which could lead to unnecessary treatments associated with significant side effects. The story adequately describes the current study and the uncertainty about the use of PSA testing. The story accurately describes the seriousness and prevalence of prostate cancer, highlighting that not all prostate cancers need to be treated, and is careful to explain what a high PSA test means. The story quotes more than one expert who is not associated with the current study. The story discusses the benefits and risks related to undergoing a PSA test–implying that no testing is an option and that this would decrease over-diagnosis. The story could have described more of the tradeoffs involved in this choice. Clearly PSA testing is available. Clearly PSA testing is not a new idea. Because the story quotes several sources, it’s safe to assume it did not rely solely or largely on a news release. Claim: More evidence prostate tests overdiagnose cancer

A:
A recent study in the Journal of the National Cancer Institute injects more controversy to the question of the utility of prostate-specific antigen (PSA) testing. The study estimates that between 23 and 42 percent of cancers found with PSA testing would never go on to cause a problem or be detected by other means (i.e., by symptoms or digital rectal exam). These cancers are considered overdiagnosis because identifying them does nothing to improve the health of the man. In fact, in these cases, finding these cancers does more harm than good because the man is subjected to treatments that cause very difficult side effects, such as impotence and incontinence. This story does a good job of describing the current study and its implications. It adequately describes the availability and novelty of PSA testing and does not engage in disease mongering. It mentions several potential harms of PSA testing and adequately quantifies the risk of overdiagnosis. The story discusses the benefits and risks related to undergoing a PSA test–implying that no testing is an option and that this would decrease over-diagnosis. The story could have described more of the tradeoffs involved in this choice. The story could have been improved by describing the costs of PSA testing.
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