Chernobyl disaster
{'<entity_0>': 'Chernobyl Nuclear Power Plant', '<entity_1>': 'Chernobyl disaster', '<entity_2>': 'Ukrainian Soviet Socialist Republic', '<entity_3>': '26 April 1986', '<entity_4>': 'Soviet Union', '<entity_5>': 'Chernobyl', '<entity_6>': 'Pripyat', '<entity_7>': 'Kyiv Oblast', '<entity_8>': '134'}
[['Chernobyl disaster', 'country', 'Soviet Union'], ['Chernobyl disaster', 'located in the administrative territorial entity', 'Kyiv Oblast'], ['Chernobyl disaster', 'location', 'Chernobyl'], ['Chernobyl disaster', 'location', 'Kyiv Oblast'], ['Chernobyl disaster', 'location', 'Chernobyl Nuclear Power Plant'], ['Chernobyl disaster', 'location', 'Pripyat'], ['Chernobyl disaster', 'point in time', '26 April 1986'], ['Chernobyl disaster', 'number of casualties', '134'], ['Chernobyl disaster', 'start time', '26 April 1986'], ['Chernobyl disaster', 'end time', '26 April 1986'], ['Chernobyl disaster', 'location', 'Soviet Union'], ['Chernobyl disaster', 'location', 'Ukrainian Soviet Socialist Republic']]
The <entity_1> was caused by a nuclear accident that occurred on Saturday <entity_3>, at the No. 4 reactor in the <entity_0>, near the city of <entity_6> in the north of the <entity_2>. Valentyna Shevchenko, then Chairwoman of the Presidium of Verkhovna Rada Supreme Soviet of the <entity_2>, recalls that Ukraine's acting Minister of Internal Affairs Vasyl Durdynets phoned her at work at 09:00 to report current affairs; only at the end of the conversation did he add that there had been a fire at the <entity_5> nuclear power plant, but it was extinguished and everything was fine. The City Council informs you that due to the accident at <entity_5> Power Station in the city of <entity_6> the radioactive conditions in the vicinity are deteriorating. Hence the evacuation of <entity_6> on 27 April 36 hours after the initial explosions was silently completed before the disaster became known outside the <entity_4>. The <entity_5> nuclear power plant is located next to the <entity_6> River, which feeds into the Dnieper reservoir system, one of the largest surface water systems in Europe, which at the time supplied water to Kiev's 2.4 million residents, and was still in spring flood when the accident occurred The radioactive contamination of aquatic systems therefore became a major problem in the immediate aftermath of the accident. The four most harmful radionuclides spread from <entity_5> were iodine-131, caesium-<entity_8>, caesium-137 and strontium-90, with half-lives of 8.02 days, 2.07 years, 30.2 years and 28.8 years respectively The iodine was initially viewed with less alarm than the other isotopes, because of its short half-life, but it is highly volatile and now appears to have travelled furthest and caused the most severe health problems Strontium, on the other hand, is the least volatile of the four and is of main concern in the areas near <entity_5> itself Iodine tends to become concentrated in thyroid and milk glands, leading, among other things, to increased incidence of thyroid cancers. Gorbachev in April 2006 wrote "The nuclear meltdown at <entity_5> 20 years ago this month, even more than my launch of perestroika, was perhaps the real cause of the collapse of the <entity_4>." CRDP works in the four most <entity_5>-affected areas in Ukraine: <entity_7>, Zhytomyrska, Chernihivska and Rivnenska.
['nuclear disaster']