Question: The answer to the question: What is the last name of the person who owned the castle before Antonin bought it? is inside the article: Hearst died in August 1951. The castle remained on the market for the following decade until bought in 1960 by Antonin Besse II, son of the late Sir Antonin Besse, and donated to the founding council of Atlantic College. Besse was a patron and honorary vice-president of the United World Colleges. The idea for an international school arose from a meeting between the educationalist Kurt Hahn, who founded Gordonstoun, and Air Marshal Sir Lawrence Darvall, the commandant of the NATO Defense College. They conceived of a college for 16–19-year-old students drawn from a wide range of nationalities, with the aim of fostering international understanding. With Rear-Admiral Desmond Hoare, the first headmaster, they persuaded Besse that the castle would make a suitable location for the first United World College, which opened in 1962 with fifty-six students.The first rigid-hulled inflatable boat was patented by Hoare at St Donat's in the 1960s. In an act of generosity, Hoare sold the patent for the boat to the Royal National Lifeboat Institution in 1973 for a notional £1; the RNLI's cheque was not cashed and remains at the castle. From 1963 until 2013 the castle hosted an RNLI lifeboat station which was credited with saving ninety-eight lives along the South Wales coast during its period of operation. The college's early years were financially precarious, but major fund-raising efforts led by Sir George Schuster strengthened the financial position in the mid-1960s.The fiftieth anniversary of the college in 2012 was celebrated with a  visit to the site by Queen Noor of Jordan, President of the United World Colleges Foundation. As at 2017, the college was home to 350 students from more than 90 countries. The Hearst Corporation maintains a connection with St Donat's through a sponsorship programme for students at the college. With a history of occupation from its construction in the late 13th century, St Donat's has been described as the oldest continuously inhabited castle in Wales., can you guess it ?
Answer: Hearst

Question: The answer to the question: What cannot hang metal netting over the side? is inside the article: H. L. Hunley takes his ship, the H.L. Hunley, out in the Charleston, South Carolina  harbor and it sinks with all hands. As the blockade still needs to be broken, Brig. Gen. P. G. T. Beauregard has the ship raised and puts George E. Dixon in charge. He starts looking for a crew and after some difficulty finally finds enough volunteers to man it. They practice cranking the propeller. The crew do not all get along with each other. Dixon flashes back to the Battle of Shiloh, where a gold coin given to him by his wife (who was later killed in a steamboat explosion caused by a drifting mine) deflected a bullet and saved his life. They take the ship down and sit on the bottom to see how long they can stay down and almost get stuck. The U.S. Navy is warned about the sub. The crew votes that if after an attack they are stuck on the bottom, they will open the valves, flooding the ship, rather than suffocate. They go out to attack the USS Wabash, but the attack fails. Following the warning the ship has draped metal chain netting over the side. Also the rope which was attached to the torpedo they were to release under the ship gets loose and becomes entangled in the propeller. It has to be cut loose while sailors on the Wabash shoot at the Hunley. Beauregard proposes putting the torpedo at the end of a long spar. The USS Housatonic is ordered to change its position in the harbor and always be ready to steam, meaning it cannot hang metal netting over the side. The Hunley's second in command, Lt. Alexander, is ordered to Mobile, Alabama, and a young soldier who had been volunteering to join the crew is allowed to do so., can you guess it ?
Answer: USS Housatonic

Question: The answer to the question: What was the acronym for the type of plant that was built in the watershed and later became a federal prison? is inside the article: White Deer Hole Creek is a 20.5-mile (33.0 km) tributary of the West Branch Susquehanna River in Clinton, Lycoming and Union counties in the U.S. state of Pennsylvania. A part of the Chesapeake Bay drainage basin, the White Deer Hole Creek watershed drains parts of ten townships. The creek flows east in a valley of the Ridge-and-valley Appalachians, through sandstone, limestone, and shale from the Ordovician, Silurian, and Devonian periods. As of 2006, the creek and its 67.2-square-mile (174 km2) watershed are relatively undeveloped, with 28.4 percent of the watershed given to agriculture and 71.6 percent covered by forest, including part of Tiadaghton State Forest. The western part of White Deer Hole Creek has very high water quality and is the only major creek section in Lycoming County classified as Class A Wild Trout Waters, defined by the Pennsylvania Fish and Boat Commission as "streams which support a population of naturally produced trout of sufficient size and abundance to support a long-term and rewarding sport fishery." The rest of the creek and its major tributary (Spring Creek) are kept stocked. There are opportunities in the watershed for canoeing, hunting, and camping, and trails for hiking and horseback riding. Historically, two paths of the native indigenous peoples ran along parts of White Deer Hole Creek. Settlers arrived by 1770, but fled in 1778 during the American Revolutionary War. They returned and the creek served as the southern boundary of Lycoming County when it was formed on April 13, 1795. A logging railroad ran along the creek from 1901 to 1904 for timber clearcutting, and small-scale lumbering continues. During World War II a Trinitrotoluene (TNT) plant, which became a federal prison in 1952, was built in the watershed. Most development is in the eastern end of the valley, with two unincorporated villages, a hamlet, and most of the farms (many Amish)., can you guess it ?
Answer:
TNT