Question: What is the continental limit of the continent on which Cape Ryugu is located?

full_context: Document 1: Chileans: Though the majority of Chileans reside in Chile, significant communities have been established in multiple countries, most noticeably Argentina, United States, Australia and Canada and countries of the European Union. Although small in number, Chilean people also make up a substantial part of the permanent population of Antarctica and the Falkland Islands (see: Chileans in the Falkland Islands).
Document 2: Antarctica: Several governments maintain permanent manned research stations on the continent. The number of people conducting and supporting scientific research and other work on the continent and its nearby islands varies from about 1,000 in winter to about 5,000 in the summer, giving it a population density between 70 and 350 inhabitants per million square kilometres (180 and 900 per million square miles) at these times. Many of the stations are staffed year-round, the winter-over personnel typically arriving from their home countries for a one-year assignment. An Orthodox church—Trinity Church, opened in 2004 at the Russian Bellingshausen Station—is manned year-round by one or two priests, who are similarly rotated every year.
Document 3: Yukidori Valley: Yukidori Valley lies in the middle of the Langhovde Hills, on the east coast of Lützow-Holm Bay, in Queen Maud Land of East Antarctica, about 20 km south of Japan’s Showa Station. "Yukidori" is Japanese for “snow petrel”.
Document 4: Cape Ryugu: Cape Ryugu () is a rocky cape 7 nautical miles (13 km) northeast of Rakuda Rock on the coast of Queen Maud Land in Antarctica. Mapped from surveys and air photos by Japanese Antarctic Research Expedition (JARE), 1957–62, and named Ryugu-misaki (cape of the dragon's palace).
Document 5: Cape Mackintosh: Cape Mackintosh is a low, ice-covered cape forming the northern tip of Kemp Peninsula and the east entrance point to Mason Inlet, on the east coast of Palmer Land, Antarctica. It was probably first seen by members of the United States Antarctic Service who photographed a portion of Kemp Peninsula while exploring this coast from the air in December 1940. During 1947 the cape was photographed by the Ronne Antarctic Research Expedition, which in conjunction with the Falkland Islands Dependencies Survey (FIDS) surveyed it from the ground. The cape was named by the FIDS after Neil A. Mackintosh (1900–74), a British marine biologist, oceanographer, and authority on Antarctic whales. Mackintosh was a member of the Discovery Investigations scientific staff from 1924 and Chief Scientific Officer from 1929 to 1949; from 1949 to 1961 he was Deputy Director of the National Institute of Oceanography (later the Institute of Oceanographic Sciences).
Document 6: Cape James: Cape James is a cape which forms the southern tip of Smith Island in the South Shetland Islands, Antarctica. The name appears on a chart based upon the 1828–31 British naval expedition under Captain Henry Foster, and is now well established in international usage.
Document 7: Matsuyama Rocks: The Matsuyama Rocks () are a small group of rocks close off the west side of Stefan Ice Piedmont, Graham Land, Antarctica. They are located towards the western end of Crystal Sound. They were mapped from air photos taken by the Falkland Islands and Dependencies Aerial Survey Expedition (1956–57), and were named by the UK Antarctic Place-Names Committee after Motonori Matsuyama, Professor of Geology and Geophysics at Kyoto University, Japan, who made laboratory studies of the crystal forms of ice.
Document 8: Antarctica: Emilio Marcos Palma was the first person born south of the 60th parallel south (the continental limit according to the Antarctic Treaty), as well as the first one born on the Antarctic mainland, in 1978 at Base Esperanza, on the tip of the Antarctic Peninsula; his parents were sent there along with seven other families by the Argentine government to determine if the continent was suitable for family life. In 1984, Juan Pablo Camacho was born at the Frei Montalva Station, becoming the first Chilean born in Antarctica. Several bases are now home to families with children attending schools at the station. As of 2009, eleven children were born in Antarctica (south of the 60th parallel south): eight at the Argentine Esperanza Base and three at the Chilean Frei Montalva Station.
Document 9: Cape Jeremy: Cape Jeremy is a cape marking the east side of the north entrance to George VI Sound and the west end of a line dividing Graham Land and Palmer Land, Antarctica. It was discovered by the British Graham Land Expedition, 1934–37, under John Riddoch Rymill, who named it for Jeremy Scott, son of James Maurice Scott, who served as home agent for the expedition and was formerly a member of the British Arctic Air Route Expedition. The latitude is 69 degrees, 24 minutes, south.
Document 10: Rocky Cape National Park: Rocky Cape National Park is a national park on the North West Coast of Tasmania, Australia. It is located at a geographical headland and surrounds the town of Sisters Beach. It is located approximately 365 km by car northwest of State Capital Hobart.
Document 11: Emilio Palma: Emilio Marcos Palma (born 7 January 1978) is an Argentine man known for being the first documented person born on the continent of Antarctica.
Document 12: Antarctic Peninsula: The Antarctic Peninsula, known as O'Higgins Land in Chile, Tierra de San Martin in Argentina, and originally known as the Palmer Peninsula in the US and as Graham Land in Great Britain, is the northernmost part of the mainland of Antarctica, located at the base of the Southern Hemisphere.
Document 13: Antarctica: The first semi-permanent inhabitants of regions near Antarctica (areas situated south of the Antarctic Convergence) were British and American sealers who used to spend a year or more on South Georgia, from 1786 onward. During the whaling era, which lasted until 1966, the population of that island varied from over 1,000 in the summer (over 2,000 in some years) to some 200 in the winter. Most of the whalers were Norwegian, with an increasing proportion of Britons. The settlements included Grytviken, Leith Harbour, King Edward Point, Stromness, Husvik, Prince Olav Harbour, Ocean Harbour and Godthul. Managers and other senior officers of the whaling stations often lived together with their families. Among them was the founder of Grytviken, Captain Carl Anton Larsen, a prominent Norwegian whaler and explorer who, along with his family, adopted British citizenship in 1910.
Document 14: Géologie Archipelago: The Géologie Archipelago, also known as the Geology Archipelago or Cape Geology Archipelago, is a small archipelago of rocky islands and rocks close to the north of Cape Géodésie and Astrolabe Glacier Tongue, extending from Helene Island on the west to the Dumoulin Islands on the east, in Adélie Land, Antarctica.
Document 15: Antarctica: New claims on Antarctica have been suspended since 1959 although Norway in 2015 formally defined Queen Maud Land as including the unclaimed area between it and the South Pole. Antarctica's status is regulated by the 1959 Antarctic Treaty and other related agreements, collectively called the Antarctic Treaty System. Antarctica is defined as all land and ice shelves south of 60° S for the purposes of the Treaty System. The treaty was signed by twelve countries including the Soviet Union (and later Russia), the United Kingdom, Argentina, Chile, Australia, and the United States. It set aside Antarctica as a scientific preserve, established freedom of scientific investigation and environmental protection, and banned military activity on Antarctica. This was the first arms control agreement established during the Cold War.
ground_truth: 60th parallel south
sub_queries: What continent contains Cape Ryugu? Answer: Antarctica
Where is the continental limit of Antarctica ? Answer: 60th parallel south