Question: What is the ranking among the continents of the continent on which MacDonald Nunataks is located?

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: MacPherson Peak: MacPherson Peak () is a prominent rock peak rising to on the northwest end of Pomerantz Tableland, in the Usarp Mountains of Antarctica. It was mapped by the United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960–62, and was named by the Advisory Committee on Antarctic Names for Frank L. MacPherson, U.S. Army, a helicopter mechanic in the field supporting the USGS surveys Topo North–South (1961–62) and Topo East–West (1962–63), the latter including a survey of this peak.
Document 3: Antarctica: Antarctica (US English i/æntˈɑːrktɪkə/, UK English /ænˈtɑːktɪkə/ or /ænˈtɑːtɪkə/ or /ænˈɑːtɪkə/)[Note 1] is Earth's southernmost continent, containing the geographic South Pole. It is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean. At 14,000,000 square kilometres (5,400,000 square miles), it is the fifth-largest continent in area after Asia, Africa, North America, and South America. For comparison, Antarctica is nearly twice the size of Australia. About 98% of Antarctica is covered by ice that averages 1.9 km (1.2 mi; 6,200 ft) in thickness, which extends to all but the northernmost reaches of the Antarctic Peninsula.
Document 4: MacDonald Nunataks: The MacDonald Nunataks () are two nunataks overlooking the head of the Ross Ice Shelf, Antarctica, standing just east of the terminus of Amundsen Glacier, west of O'Brien Peak. They were mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1960–64, and were named by the Advisory Committee on Antarctic Names for John A. MacDonald, a biologist with the McMurdo Station winter party, 1964.
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: Antarctic Plate: The Antarctic Plate is a tectonic plate containing the continent of Antarctica, the Kerguelen Plateau and extending outward under the surrounding oceans. After breakup from Gondwana (the southern part of the supercontinent Pangea), the Antarctic plate began moving the continent of Antarctica south to its present isolated location causing the continent to develop a much colder climate. The Antarctic Plate is bounded almost entirely by extensional mid-ocean ridge systems. The adjoining plates are the Nazca Plate, the South American Plate, the African Plate, the Somali Plate, the Indo-Australian Plate, the Pacific Plate, and, across a transform boundary, the Scotia Plate.
Document 7: Antarctica: Positioned asymmetrically around the South Pole and largely south of the Antarctic Circle, Antarctica is the southernmost continent and is surrounded by the Southern Ocean; alternatively, it may be considered to be surrounded by the southern Pacific, Atlantic, and Indian Oceans, or by the southern waters of the World Ocean. It covers more than 14,000,000 km2 (5,400,000 sq mi), making it the fifth-largest continent, about 1.3 times as large as Europe. The coastline measures 17,968 km (11,165 mi) and is mostly characterized by ice formations, as the following table shows:
Document 8: 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 9: Gratton Nunatak: Gratton Nunatak () is a bare, linear nunatak lying at the south side of the mouth of McCarthy Glacier, Antarctica, where the latter enters Reedy Glacier. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1960–64, and was named by the Advisory Committee on Antarctic Names for John W. Gratton, a construction mechanic at Byrd Station in 1962.
Document 10: McDonald Beach: McDonald Beach () is an extensive beach lying west of Inclusion Hill and southwest of Cape Bird on Ross Island, Antarctica. It was named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1958–59, after Captain Edwin A. McDonald, then Deputy Commander, U.S. Naval Support Force, Antarctica, who provided extensive transport and other facilities to the NZGSAE in support of the survey of the Cape Bird area.
Document 11: Antarctica: Due to its location at the South Pole, Antarctica receives relatively little solar radiation. This means that it is a very cold continent where water is mostly in the form of ice. Precipitation is low (most of Antarctica is a desert) and almost always in the form of snow, which accumulates and forms a giant ice sheet which covers the land. Parts of this ice sheet form moving glaciers known as ice streams, which flow towards the edges of the continent. Next to the continental shore are many ice shelves. These are floating extensions of outflowing glaciers from the continental ice mass. Offshore, temperatures are also low enough that ice is formed from seawater through most of the year. It is important to understand the various types of Antarctic ice to understand possible effects on sea levels and the implications of global cooling.
Document 12: Southern Ocean: The Southern Ocean, geologically the youngest of the oceans, was formed when Antarctica and South America moved apart, opening the Drake Passage, roughly 30 million years ago. The separation of the continents allowed the formation of the Antarctic Circumpolar Current.
Document 13: Miller Nunatak: Miller Nunatak () is a sharp pointed nunatak rising above the ice at the lower end of Campbell Glacier, east-southeast of Mount Dickason, in Victoria Land, Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos, 1955–63, and was named by the Advisory Committee on Antarctic Names for Herman T. Miller, a biologist at McMurdo Station in the 1965–66 season.
Document 14: McSweeney Point: McSweeney Point () is a sharp rock point east of the terminus of Davidson Glacier, overlooking the Ross Ice Shelf, Antarctica. It was mapped by the United States Geological Survey from tellurometer surveys (1961–62) and Navy air photos (1960), and was named by the Advisory Committee on Antarctic Names for Lieutenant R.H. McSweeney, U.S. Navy, Commanding Officer of the during Operation Deep Freeze 1963.
Document 15: Antarctica: Antarctica is colder than the Arctic for three reasons. First, much of the continent is more than 3,000 m (9,800 ft) above sea level, and temperature decreases with elevation in the troposphere. Second, the Arctic Ocean covers the north polar zone: the ocean's relative warmth is transferred through the icepack and prevents temperatures in the Arctic regions from reaching the extremes typical of the land surface of Antarctica. Third, the Earth is at aphelion in July (i.e., the Earth is farthest from the Sun in the Antarctic winter), and the Earth is at perihelion in January (i.e., the Earth is closest to the Sun in the Antarctic summer). The orbital distance contributes to a colder Antarctic winter (and a warmer Antarctic summer) but the first two effects have more impact.
ground_truth: fifth-largest
sub_queries: MacDonald Nunataks >> continent Answer: Antarctica
What is Antarctica 's ranking among the continents? Answer: fifth-largest