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.

[EX Q]: They said a device that stimulates the vagus nerve in the neck while simultaneously playing different sounds for several weeks helped eliminate the condition in a group of rats. A trial of the treatment in humans is set to start in Europe this year, said Dr. Navzer Engineer of MicroTransponder, a medical device company affiliated with The University of Texas at Dallas, whose study appears in the journal Nature. Tinnitus is sometimes brought on by hearing loss. It occurs as cells in the inner ear are damaged, often from a loud noise. Current drugs help mask tinnitus, but the condition is incurable. Engineer’s team thinks tinnitus may be caused when too many brain cells become tuned to a specific tone in the brain. So his team set out to train the brain to ignore the nerve signals that cause the ringing sound. To do this, they paired a device that sends electrical impulses to the vagus nerve in the neck with different sounds. Stimulating this nerve releases chemicals such as acetylcholine and norepinephrine that trigger changes in the brain. The University of Texas at Dallas team tested this approach in a series of experiments with rats, using an indirect but accepted method of testing hearing in animals. In one, they stimulated the vagus nerve while playing different sounds 300 times a day for 20 days to a group of eight rats with a form of tinnitus. The tones were close to the frequency of the ringing sound, and the hope was to trick some of the nerve cells into listening to the new tones rather than the ringing tone. When the team checked the nerve responses to different tones, the tinnitus had disappeared in rats exposed to the tones and nerve stimulation, but it persisted in a group of control animals. “Unlike previous treatments, we’re not masking the tinnitus. We are eliminating the source of the tinnitus,” Michael Kilgard of the University of Texas-Dallas, who worked on the study, said in a statement. MicroTransponder is developing a wireless medical device to stimulate the vagus nerve and hopes to test it in people later this year. Cyberonics Inc already sells vagus nerve stimulation devices for people with epilepsy and depression. The National Institute on Deafness and Other Communication Disorders, part of the National Institutes of Health, funded a large part of the research.
[EX A]: Device treatment may silence ringing in the ears.

[EX Q]: Environmental groups strongly oppose the practice of hydraulic fracturing, or fracking, which involves extracting gas from rocks by breaking them up with water and chemicals at high pressure. But the government, keen to cut Britain’s reliance on imports as North Sea gas supplies dry up, has tightened regulations and has given Cuadrilla permission to frack two wells at its Preston New Road site in Lancashire. Cuadrilla, 47.4 percent owned by Australia’s AJ Lucas and 45.2 percent owned by a fund managed by Riverstone, said it would spend at least three months fracking two horizontal wells to test flow rates to determine whether full-scale gas extraction would be viable. The British Geological Survey estimates shale gas resources in northern England alone could amount to 1,300 trillion cubic feet (tcf) of gas, 10 percent of which could meet the Britain’s demand for almost 40 years. “Shale gas has the potential to be a new domestic energy source, enhancing our energy security and delivering economic benefits, including the creation of well-paid, quality jobs,” the Department for Business, Energy and Industrial Strategy said. “We have been clear that any shale developments must be safe and environmentally sound,” the department added in a statement. Attempts to extract the gas have come under fire from local communities and campaigners concerned about the potential effect on the environment and ground water. They say extracting more fossil fuel is at odds with Britain’s commitment to reduce greenhouse gas emissions. “It is morally bankrupt to be heralding the start of a whole new fossil fuel industry,” Craig Bennett, chief executive of environmental group Friends of the Earth said in a statement. “You can deal with climate change or you can have fracking – you can’t do both,” he said. The government asked its climate advisers on Monday to examine whether Britain should toughen its climate targets and set a date to move to a net zero emissions goal. Britain has an existing target to cut its greenhouse gas emissions by 80 percent compared with 1990 levels by 2050.
[EX A]: Britain's Cuadrilla starts fracking for gas after seven-year pause.

[EX Q]: The four-page letter, the contents of which were confirmed by U.S. officials to Reuters on Tuesday, described a bleak situation onboard the nuclear-powered carrier as more sailors test positive for the virus. The Navy puts the ship’s complement at 5,000, the equivalent of a small American town. The letter was first reported by the San Francisco Chronicle. Captain Brett Crozier, the ship’s commanding officer, wrote that the carrier lacked enough quarantine and isolation facilities and warned the current strategy would slow but fail to eradicate the highly contagious respiratory virus. In the letter dated Monday, he called for “decisive action” and removing over 4,000 sailors from the ship and isolating them. Along with the ship’s crew, naval aviators and others serve aboard the Roosevelt. “We are not at war. Sailors do not need to die. If we do not act now, we are failing to properly take care of our most trusted asset - our sailors,” Crozier wrote. U.S. officials, speaking on condition of anonymity, told Reuters that nearly 80 people aboard the ship had tested positive for the coronavirus, a number likely to increase as all personnel on the ship are tested. Still, the Navy declined to confirm exactly how many people aboard the Roosevelt had been infected  The carrier was in the Pacific when the Navy reported its first coronavirus case a week ago. It has since pulled into port in Guam, a U.S. island territory in the western Pacific. U.S. Defense Secretary Mark Esper said on Tuesday it was not time to evacuate the carrier, adding he had not read the letter in detail. In an interview with CBS News, Esper did not comment directly on Crozier’s proposal, at least in the portions that aired. Asked if it was time to evacuate the carrier, Esper said: “I don’t think we’re at that point.”  Admiral John Aquilino, head of the U.S. Navy’s Pacific Fleet, told reporters that the plan was to take some sailors off the ship, test and quarantine them, clean the ship and then rotate them with those on the carrier. He said that there would be some sailors who would be in quarantine and isolation on the vessel. Asked if he was following what the ship’s captain wanted to do, but was not able to do it at the pace the commanding officer wanted, Aquilino said: “That is absolutely the case.”  Acting U.S. Navy Secretary Thomas Modly said he had heard about the letter on Tuesday morning and that the Navy had been working for several days to get the sailors off the ship in Guam. Modly said Guam did not have enough beds and the Navy was in talks with the local government to use hotels and set up tents. “We don’t disagree with the (commanding officer) on that ship, and we’re doing it in a very methodical way because it’s not the same as a cruise ship ... that ship has armaments on it, it has aircraft on it,” he said on CNN. Reuters reported last week that the U.S. military had decided it would stop providing some of the more mission-specific data about coronavirus infections within its ranks, citing concern  the information might be used by adversaries as the virus spreads. The Roosevelt is just the latest example of the spread of the virus within the U.S. military. Navy officials say that sailors onboard a number of ships have tested positive,  including an amphibious assault ship at port in San Diego. The first U.S. military service member, a New Jersey Army National Guardsman, died on Saturday from COVID-19, the disease caused by the coronavirus, the Pentagon said on Monday. As of Tuesday, 673 active-duty service members had tested positive for the coronavirus, an increase of more than 100 from the previous day, the Pentagon said in a statement.
[EX A]:
'Sailors do not need to die,' warns captain of coronavirus-hit U.S. aircraft carrier.