Question: What latitude is defined as being the border of Knobhead's continent?

full_context: Document 1: Wilkes Land: Wilkes Land is a large district of land in eastern Antarctica, formally claimed by Australia as part of the Australian Antarctic Territory, though the validity of this claim has been placed for the period of the operation of the Antarctic Treaty, to which Australia is a signatory. It fronts on the southern Indian Ocean between Queen Mary Coast and Adelie Land, extending from Cape Hordern in 100°31' E to Pourquoi Pas Point, in 136°11' E. The region extends as a sector about 2600 km towards the South Pole, with an estimated land area of 2,600,000 km², mostly glaciated. It is further subdivided in the following coastal areas which can also be thought of as sectors extending to the South Pole:
Document 2: Mount Handsley: Mount Handsley () is a subsidiary rock peak on the Knobhead massif in Victoria Land, Antarctica. It rises south-southeast of Knobhead and overlooks the upper part of Ferrar Glacier from the northwest. It was named in 1969 by the New Zealand Antarctic Place-Names Committee after Jesse Handsley, a member of the "Discovery" crew of Captain Robert Falcon Scott's expedition, who accompanied Scott, Evans, Feather, Skelton and Lashly on the major sledging journey up the Ferrar and Taylor Glaciers in 1903.
Document 3: Taylor Ledge: Taylor Ledge is a notable flat-topped ridge displaying abrupt cliffs north and south, situated between Boyce Ridge and Mount Shinn on the west slope of Sentinel Range, Ellsworth Mountains in Antarctica. The upper surface of the feature is ice covered and relatively level except for 3373-meter Knutzen Peak on the north edge.
Document 4: Kubus Mountain: Kubus Mountain () is a distinctive blocky mountain, rising to southeast of Trollslottet Mountain, in the northwestern part of the Filchner Mountains of Queen Maud Land, Antarctica. It was discovered by the Third German Antarctic Expedition under Ritscher, 1938–39, and given the descriptive name Kubus (the cube). Aurkleven Cirque lies between Klevekampen and Kubus.
Document 5: Wilkes Land: Wilkes Land is a large district of land in eastern Antarctica, formally claimed by Australia as part of the Australian Antarctic Territory, though the validity of this claim has been placed for the period of the operation of the Antarctic Treaty, to which Australia is a signatory. It fronts on the southern Indian Ocean between Queen Mary Coast and Adelie Land, extending from Cape Hordern in 100°31' E to Pourquoi Pas Point, in 136°11' E. The region extends as a sector about 2600 km towards the South Pole, with an estimated land area of 2,600,000 km², mostly glaciated. It is further subdivided in the following coastal areas which can also be thought of as sectors extending to the South Pole:
Document 6: Mount Queequeg: Mount Queequeg () is a conspicuous, partly snow-covered mountain with three conical summits, the highest 900 m, situated in eastern Aristotle Mountains between the mouths of Starbuck and Stubb Glaciers on the east coast of Graham Land in Antarctica.
Document 7: Knobhead Moraine: Knobhead Moraine () is a conspicuous moraine of large boulders to the north of Knobhead, Quartermain Mountains, in Victoria Land, Antarctica. It continues northward between the Cavendish Rocks and the western end of the Kukri Hills as a medial moraine in lower Taylor Glacier. The moraine was first observed by Lieutenant Albert B. Armitage, Royal Naval Reserve, second in command of the British National Antarctic Expedition, 1901–04, who named it in association with Knobhead.
Document 8: Antarctica: The Protocol on Environmental Protection to the Antarctic Treaty (also known as the Environmental Protocol or Madrid Protocol) came into force in 1998, and is the main instrument concerned with conservation and management of biodiversity in Antarctica. The Antarctic Treaty Consultative Meeting is advised on environmental and conservation issues in Antarctica by the Committee for Environmental Protection. A major concern within this committee is the risk to Antarctica from unintentional introduction of non-native species from outside the region.
Document 9: Australian Antarctic Data Centre: Article III.1.c of the Antarctic Treaty states that "to the greatest extent feasible and practicable" ... "scientific observations and results from Antarctica shall be exchanged and made freely available"
Document 10: 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.
Document 11: Knobhead: Knobhead () is a massive ice-free mountain, high, standing south of the western end of the Kukri Hills and overlooking Ferrar Glacier and Taylor Glacier at their point of apposition, in Victoria Land, Antarctica. It was discovered by the British National Antarctic Expedition (1901–04) and so named because of its appearance.
Document 12: Knutzen Peak: Knutzen Peak is a sharp, rocky summit of elevation standing on the north edge of Taylor Ledge in the Sentinel Range of the Ellsworth Mountains, Antarctica. It surmounts Branscomb Glacier to the east and south.
Document 13: National Antarctic Program: Till date 48 countries have signed the Antarctic Treaty which was drafted and negotiated back in 1959. Out of these, only 28 countries have the Consultative status i.e. these Parties have the right to participate in Antarctic Treaty Consultative Meetings (ATCM) and are accordingly known as Consultative Parties and their presence in Antarctica is shown by carrying substantial research there.
Document 14: Monastery Nunatak: Monastery Nunatak () is a spectacular isolated nunatak at the head of Ferrar Glacier, between Mount Feather and Pivot Peak, in Victoria Land, Antarctica. A cap of pale sandstone, with vertical walls, standing above a horizontal base of black dolerite, strongly suggests a Tibetan monastery. It was named by the New Zealand Northern Survey Party of the Commonwealth Trans-Antarctic Expedition of 1958–59.
Document 15: Antarctica: In 1983, the Antarctic Treaty Parties began negotiations on a convention to regulate mining in Antarctica. A coalition of international organizations launched a public pressure campaign to prevent any minerals development in the region, led largely by Greenpeace International, which established its own scientific station—World Park Base—in the Ross Sea region and conducted annual expeditions to document environmental effects of humans on Antarctica. In 1988, the Convention on the Regulation of Antarctic Mineral Resources (CRAMRA) was adopted. The following year, however, Australia and France announced that they would not ratify the convention, rendering it dead for all intents and purposes. They proposed instead that a comprehensive regime to protect the Antarctic environment be negotiated in its place. The Protocol on Environmental Protection to the Antarctic Treaty (the "Madrid Protocol") was negotiated as other countries followed suit and on 14 January 1998 it entered into force. The Madrid Protocol bans all mining in Antarctica, designating Antarctica a "natural reserve devoted to peace and science".
ground_truth: south of 60° S
sub_queries: Which continent is Knobhead in? Answer: Antarctica
What latitude is defined as being Antarctica 's border? Answer: south of 60° S