In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.
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Question: Passage: Following a fire at the Ajuda Palace in 1794, the Prince Regent John VI and his wife Carlotta Joaquina began to use Queluz themselves. The Robillon wing was enlarged and given an upper floor for the use of the princess and her nine children. These additions were destroyed in the fire of 1934. To escape the forces of Napoleon I in 1807, the Portuguese royal family abandoned Queluz and fled to Brazil. The French occupational forces took control of the palace, and their commander, General Junot, made several alterations to the building. On the royal family's return from exile in 1821, the King preferred to live at Mafra, leaving his wife, the Spanish Queen Carlotta Joaquina, to occupy Queluz with her aunt Princess Maria Francisca Benedita. The King visited Queluz infrequently. It was on one of these rare visits that Joao VI died in the circular domed King's Bedroom in 1826.Carlotta Joaquina, sometimes described as sinister, is said to have been ambitious and violent. Her features were reportedly ugly, and she was short in stature. Whatever her shortcomings she lived in great style at Queluz, employing an orchestra which William Beckford described as the finest in Europe. The Queen also had a small private theatre in the gardens, of which nothing remains today. She died at the palace in 1830.Following the death of Carlotta Joaquina, Queluz saw only intermittent use as a royal residence and was not again the primary residence of Portuguese royalty. Carlotta Joaquina's son King Miguel used the palace during the three-year civil war which he fought against his brother King Pedro IV, before being forced by his brother in 1834 to abdicate and go into exile. A year later, Pedro IV died of tuberculosis at the age of 35 at Queluz, the palace of his birth. Pedro I's daughter Maria II ruled until her death in 1853 and was succeeded by her son Pedro V. Following his untimely death in the cholera epidemic of 1861, the throne passed to his brother Luis. From this time the royal family lived chiefly at the rebuilt Ajuda Palace in Lisbon. On the assassination of Luis' son Carlos I in 1908, the palace passed into the ownership of the state. Portugal was in the turmoil of revolution and the monarchy fell two years later.
Question: What are the full names of the people who died at the palace?

Answer: Carlotta Joaquina.

Question: Passage: There are over 40 species of mammals in the Pine Creek Gorge. Leonard Harrison State Park's extensive forest cover makes it a habitat for "big woods" wildlife, including white-tailed deer, black bear, wild turkey, red and gray squirrels. Less common creatures include bobcats, coyote, fishers, river otters, and timber rattlesnakes. There are over 26 species of fish in Pine Creek, including trout, suckers, fallfish, and rock bass. Other aquatic species include crayfish and frogs.Several species have been reintroduced to the gorge. White-tailed deer were imported from Michigan and released throughout Pennsylvania to reestablish what had once been a thriving population. The current population of deer in Pennsylvania are descended from the original stock introduced beginning in 1906, after the lumberman had moved out of the area. The deer population has grown so much that today they exceed their carrying capacity in many areas. River otters were successfully reintroduced in 1983 and now breed in the gorge. Despite the fears of anglers, their diet is only 5 percent trout.Fishers, medium-sized weasels, were reintroduced to Pine Creek Gorge as part of an effort to establish a healthy population of fishers in Pennsylvania. Prior to the lumber era, fishers were numerous throughout the forests of Pennsylvania. They are generalized predators and will hunt any smaller creatures in their territory, including porcupines. Elk have been reintroduced west of the gorge in Clinton County and occasionally wander near the west rim of the canyon. Coyotes have come back on their own. Invasive insect species in the gorge include gypsy moths, which eat all the leaves off trees, especially oaks, and hemlock woolly adelgids, which weaken and kill hemlocks. Invasive plant species include purple loosestrife and Japanese knotweed.
Question: What is the full name of the place that has gypsy moths?

Answer: Pine Creek Gorge.

Question: Passage: The seabed contains enormous reserves of minerals which can be exploited by dredging. This has advantages over land-based mining in that equipment can be built at specialised shipyards and infrastructure costs are lower. Disadvantages include problems caused by waves and tides, the tendency for excavations to silt up and the washing away of spoil heaps. There is a risk of coastal erosion and environmental damage.
Seafloor massive sulphide deposits are potential sources of silver, gold, copper, lead and zinc and trace metals since their discovery in the 1960s. They form when geothermally heated water is emitted from deep sea hydrothermal vents known as "black smokers". The ores are of high quality but prohibitively costly to extract. Small scale mining of the deep sea floor is being developed off the coast of Papua New Guinea using robotic techniques, but the obstacles are formidable.There are large deposits of petroleum, as oil and natural gas, in rocks beneath the seabed. Offshore platforms and drilling rigs extract the oil or gas and store it for transport to land. Offshore oil and gas production can be difficult due to the remote, harsh environment. Drilling for oil in the sea has environmental impacts. Animals may be disorientated by seismic waves used to locate deposits, probably causing the beaching of whales. Toxic substances such as mercury, lead and arsenic may be released. The infrastructure may cause damage, and oil may be spilt.Large quantities of methane clathrate exist on the seabed and in ocean sediment at a temperature of around 2 C (36 F) and these are of interest as a potential energy source. Some estimates put the amount available at between one and 5 million cubic kilometres (0.24 to 1.2 million cubic miles). Also on the seabed are manganese nodules formed of layers of iron, manganese and other hydroxides around a core. In the Pacific these may cover up to 30 percent of the deep ocean floor. The minerals precipitate from seawater and grow very slowly. Their commercial extraction for nickel was investigated in the 1970s but abandoned in favour of more convenient sources. In suitable locations, diamonds are gathered from the seafloor using suction hoses to bring gravel ashore. In deeper waters, mobile seafloor crawlers are used and the deposits are pumped to a vessel above. In Namibia, more diamonds are now collected from marine sources than by conventional methods on land.
Question: What are of interest as a potential energy source?

Answer:
Large quantities of methane clathrate.