With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The ice in Antarctica stops in the northern part of the continent.
text_B: Antarctica -LRB- UK English -LSB- ænˈtɑːktɪkə -RSB- or -LSB- ænˈtɑːtɪkə -RSB- , US English -LSB- æntˈɑːrktɪkə -RSB- -RRB- is Earth 's southernmost continent .. Earth. Earth. continent. continent. It contains the geographic South Pole and is situated in the Antarctic region of the Southern Hemisphere , almost entirely south of the Antarctic Circle , and is surrounded by the Southern Ocean .. South Pole. South Pole. Antarctic. Antarctic. Southern Hemisphere. Southern Hemisphere. Antarctic Circle. Antarctic Circle. Southern Ocean. Southern Ocean. At 14000000 km2 , it is the fifth-largest continent .. continent. continent. For comparison , Antarctica is nearly twice the size of Australia .. Australia. Australia ( continent ). About 98 % of Antarctica is covered by ice that averages 1.9 km in thickness , which extends to all but the northernmost reaches of the Antarctic Peninsula .. Antarctic. Antarctic. ice. ice. Antarctic Peninsula. Antarctic Peninsula. Antarctica , on average , is the coldest , driest , and windiest continent , and has the highest average elevation of all the continents .. continent. continent. elevation. elevation. Antarctica is a desert , with annual precipitation of only 200 mm -LRB- 8 in -RRB- along the coast and far less inland .. desert. desert. precipitation. precipitation ( meteorology ). The temperature in Antarctica has reached − 89.2 ° C -LRB- − 128.6 ° F -RRB- , though the average for the third quarter -LRB- the coldest part of the year -RRB- is − 63 ° C -LRB- − 81 ° F -RRB- .. Anywhere from 1,000 to 5,000 people reside throughout the year at the research stations scattered across the continent .. continent. continent. research stations. Research stations in Antarctica. Organisms native to Antarctica include many types of algae , bacteria , fungi , plants , protista , and certain animals , such as mites , nematodes , penguins , seals and tardigrades .. algae. algae. bacteria. bacteria. fungi. fungus. seals. Pinniped. Vegetation , where it occurs , is tundra .. tundra. tundra. Although myths and speculation about a Terra Australis -LRB- `` Southern Land '' -RRB- date back to antiquity , Antarctica is noted as the last region on Earth in recorded history to be discovered and colonised by humans , being only first sighted in 1820 by the Russian expedition of Fabian Gottlieb von Bellingshausen and Mikhail Lazarev on Vostok and Mirny , who sighted the Fimbul ice shelf .. Earth. Earth. ice. ice. Terra Australis. Terra Australis. Russian expedition. List of Russian explorers. Fabian Gottlieb von Bellingshausen. Fabian Gottlieb von Bellingshausen. Mikhail Lazarev. Mikhail Lazarev. Vostok. Vostok ( sloop-of-war ). Mirny. Mirny ( sloop-of-war ). Fimbul ice shelf. Fimbul ice shelf. The continent , however , remained largely neglected for the rest of the 19th century because of its hostile environment , lack of easily accessible resources , and isolation .. continent. continent. In 1895 , the first confirmed landing was conducted by a team of Norwegians .. Antarctica is a de facto condominium , governed by parties to the Antarctic Treaty System that have consulting status .. Antarctic. Antarctic. condominium. Condominium ( international law ). Antarctic Treaty System. Antarctic Treaty System. Twelve countries signed the Antarctic Treaty in 1959 , and thirty-eight have signed it since then .. Antarctic. Antarctic. The treaty prohibits military activities and mineral mining , prohibits nuclear explosions and nuclear waste disposal , supports scientific research , and protects the continent 's ecozone .. continent. continent. ecozone. ecozone. Ongoing experiments are conducted by more than 4,000 scientists from many nations .
related.