Question: When did chemical attacks happen in the country where some foreign inhabitants of the country the winner of the women's gold in curling are from in 2017?

full_context: Document 1: Khan Shaykhun chemical attack: The Khan Shaykhun chemical attack took place on 4 April 2017 on the town of Khan Shaykhun in the Idlib Governorate of Syria. At the time of the attack, the town was under the control of Tahrir al - Sham, previously known as the al - Nusra Front.
Document 2: Sweden: Between 1820 and 1930, approximately 1.3 million Swedes, a third of the country's population at the time, emigrated to North America, and most of them to the United States. There are more than 4.4 million Swedish Americans according to a 2006 US Census Bureau estimate. In Canada, the community of Swedish ancestry is 330,000 strong.There are no official statistics on ethnicity, but according to Statistics Sweden, around 3,193,089 (31.5%) inhabitants of Sweden were of a foreign background in 2017, defined as being born abroad or born in Sweden with at least one parent born abroad. The most common countries of origin were Syria (1.70%), Finland (1.49%), Iraq (1.39%), Poland (0.90%), Iran (0.73%) and Somalia (0.66%).  Sweden subsequently has one of the oldest populations in the world, with the average age of 41.1 years.
Document 3: Somalis: While the distribution of Somalis per country in Europe is hard to measure because the Somali community on the continent has grown so quickly in recent years, an official 2010 estimate reported 108,000 Somalis living in the United Kingdom. Somalis in Britain are largely concentrated in the cities of London, Sheffield, Bristol, Birmingham, Cardiff, Liverpool, Manchester, Leeds, and Leicester, with London alone accounting for roughly 78% of Britain's Somali population. There are also significant Somali communities in Sweden: 57,906 (2014); the Netherlands: 37,432 (2014); Norway: 38,413 (2015); Denmark: 18,645 (2014); and Finland: 16,721 (2014).
Document 4: Chemical weapon: Russia entered the CWC with the largest declared stockpile of chemical weapons. By 2010 the country had destroyed 18,241 tonnes at destruction facilities located in Gorny (Saratov Oblast) and Kambarka (Udmurt Republic), where operations have finished, and Shchuchye (Kurgan Oblast), Maradykovsky (Kirov Oblast), Leonidovka (Penza Oblast) while installations are under construction in Pochep (Bryansk Oblast) and Kizner (Udmurt Republic). By 2016, Russia destroyed around 94% of its chemical weapons, planning to completely destroy its remaining stockpile by the end of 2018. On September 27, 2017 Russia announced the destruction of the last batch of chemical weapons, completing the total destruction of its chemical arsenal, ahead of schedule.On March 4, 2018, Russia was alleged to have conducted a chemical attack in Salisbury, UK that left 5 injured including the alleged target of the attack, Sergei Skripal.
Document 5: Curling at the 2018 Winter Olympics: The curling competition at the 2018 Winter Olympics was held between 8 and 25 February 2018 at the Gangneung Curling Centre. This was the seventh time that curling is on the Olympic program. In each of the men's and women's competitions, ten nations competed. As decided in 2015, a third competition, mixed doubles curling, has graduated from a spectator sport to a full medal competition. Teams consisted of one woman and one man. There were eight participating countries in the mixed competition.
Document 6: Curling at the 2018 Winter Olympics – Women's tournament: Place Team 01! Sweden 02! South Korea 03! Japan Great Britain 5 China 6 Canada 7 Switzerland 8 United States 9 Olympic Athletes from Russia 10 Denmark
Document 7: Switzerland: In 2012, resident foreigners made up 23.3% of the population. Most of these (64%) were from European Union or EFTA countries. Italians were the largest single group of foreigners with 15.6% of total foreign population. They were closely followed by Germans (15.2%), immigrants from Portugal (12.7%), France (5.6%), Serbia (5.3%), Turkey (3.8%), Spain (3.7%), and Austria (2%). Immigrants from Sri Lanka, most of them former Tamil refugees, were the largest group among people of Asian origin (6.3%). Additionally, the figures from 2012 show that 34.7% of the permanent resident population aged 15 or over in Switzerland, i.e. 2,335,000 persons, had an immigrant background. A third of this population (853,000) held Swiss citizenship. Four fifths of persons with an immigration background were themselves immigrants (first generation foreigners and native-born and naturalised Swiss citizens), whereas one fifth were born in Switzerland (second generation foreigners and native-born and naturalised Swiss citizens). In the 2000s, domestic and international institutions expressed concern about what they perceived as an increase in xenophobia, particularly in some political campaigns. In reply to one critical report the Federal Council noted that "racism unfortunately is present in Switzerland", but stated that the high proportion of foreign citizens in the country, as well as the generally unproblematic integration of foreigners", underlined Switzerland's openness.
Document 8: Marcia Gudereit: Born in Moose Jaw, Saskatchewan, she was part of Team Schmirler, the women's curling team that won a gold medal at the 1998 Winter Olympics. This team is the only 3-time winner of the World Curling Championship (1993, 1994, 1997). After Sandra died, she remained in the team, now skipped by Jan Betker for whom she currently plays. She curls out of the Caledonia Curling Club in Regina, Saskatchewan and works as a systems analyst for The Co-operators.
Document 9: List of Olympic medalists in curling: Games Gold Silver Bronze 1998 Nagano details Canada (CAN) Sandra Schmirler Jan Betker Joan McCusker Marcia Gudereit Atina Ford Denmark (DEN) Helena Blach Lavrsen Margit Pörtner Dorthe Holm Trine Qvist Jane Bidstrup Sweden (SWE) Elisabet Gustafson Katarina Nyberg Louise Marmont Elisabeth Persson Margaretha Lindahl 2002 Salt Lake City details Great Britain (GBR) Rhona Martin Deborah Knox Fiona MacDonald Janice Rankin Margaret Morton Switzerland (SUI) Luzia Ebnöther Mirjam Ott Tanya Frei Laurence Bidaud Nadia Röthlisberger Canada (CAN) Kelley Law Julie Skinner Georgina Wheatcroft Diane Nelson Cheryl Noble 2006 Turin details Sweden (SWE) Anette Norberg Eva Lund Cathrine Lindahl Anna Svärd Ulrika Bergman Switzerland (SUI) Mirjam Ott Binia Beeli Valeria Spälty Michèle Moser Manuela Kormann Canada (CAN) Shannon Kleibrink Amy Nixon Glenys Bakker Christine Keshen Sandra Jenkins 2010 Vancouver details Sweden (SWE) Anette Norberg Eva Lund Cathrine Lindahl Anna Le Moine Kajsa Bergström Canada (CAN) Cheryl Bernard Susan O'Connor Carolyn Darbyshire Cori Bartel Kristie Moore China (CHN) Wang Bingyu Liu Yin Yue Qingshuang Zhou Yan Liu Jinli 2014 Sochi details Canada (CAN) Jennifer Jones Kaitlyn Lawes Jill Officer Dawn McEwen Kirsten Wall Sweden (SWE) Margaretha Sigfridsson Maria Prytz Christina Bertrup Maria Wennerström Agnes Knochenhauer Great Britain (GBR) Eve Muirhead Anna Sloan Vicki Adams Claire Hamilton Lauren Gray 2018 Pyeongchang details Sweden (SWE) Anna Hasselborg Sara McManus Agnes Knochenhauer Sofia Mabergs Jennie Wåhlin South Korea (KOR) Kim Eun - jung Kim Kyeong - ae Kim Seon - yeong Kim Yeong - mi Kim Cho - hi Japan (JPN) Satsuki Fujisawa Chinami Yoshida Yumi Suzuki Yurika Yoshida Mari Motohashi
Document 10: New York City: Approximately 37% of the city's population is foreign born. In New York, no single country or region of origin dominates. The ten largest sources of foreign-born individuals in the city as of 2011 were the Dominican Republic, China, Mexico, Guyana, Jamaica, Ecuador, Haiti, India, Russia, and Trinidad and Tobago, while the Bangladeshi immigrant population has since become one of the fastest growing in the city, counting over 74,000 by 2013.
Document 11: Somalis: Civil strife in the early 1990s greatly increased the size of the Somali diaspora, as many of the best educated Somalis left for the Middle East, Europe and North America. In Canada, the cities of Toronto, Ottawa, Calgary, Edmonton, Montreal, Vancouver, Winnipeg and Hamilton all harbor Somali populations. Statistics Canada's 2006 census ranks people of Somali descent as the 69th largest ethnic group in Canada.
Document 12: March 2012 Damascus bombings: The March 2012 Damascus bombings were two large car bombs that exploded in front of the air intelligence and criminal security headquarters in the Syrian capital of Damascus. At least 27 people were reported killed and over a 140 injured in the fourth major bombing since the beginning of the uprising and the second in the city. As in previous cases, the opposition blamed the government for orchestrating attacks, while the government placed the blame on terrorists and foreign groups.
Document 13: Rif Dimashq offensive (March–August 2013): On 21 August, an alleged chemical attack on the Ghouta region claimed lives of hundreds of people, both civilians and rebels. Estimates of dead varied from 355 up to 1,429.On 22 August, according to the Syrian opposition, the Syrian Army launched a new offensive against rebel positions in Rif Dimashq. The Army entered Erbine, Harasta, Jobar, Zamalka and Ain Tarma, but without taking full control. They did however capture strategic points.
Document 14: Douma chemical attack: European Union – In a statement, the EU said "the evidence points towards yet another chemical attack by the regime" and "it is a matter of grave concern that chemical weapons continue to be used, especially on civilians. The European Union condemns in the strongest terms the use of chemical weapons and calls for an immediate response by the international community". It also called for the United Nations Security Council to identify the perpetrators and for Russia and Iran to influence Assad against launching such attacks. United Nations – On 10 April 2018, the United Nations Security Council failed to adopt three competing resolutions on an inquiry into the chemical attack, with Russia and the United States clashing over the issue and exchanging military threats.The World Health Organization released a statement, with a reference to outside medical sources, that 43 people died while suffering "symptoms consistent with exposure to highly toxic chemicals."
Document 15: 2018 World Women's Curling Championship: 2018 World Women's Curling Championship Host city North Bay, Ontario Arena North Bay Memorial Gardens Dates March 17 -- 25 Attendance 69,391 Winner Canada Curling club St. Vital Curling Club, Winnipeg Skip Jennifer Jones Third Kaitlyn Lawes Second Jill Officer Lead Dawn McEwen Alternate Shannon Birchard Coach Wendy Morgan Finalist Sweden (Anna Hasselborg) ``2017 2019 ''
ground_truth: 4 April
sub_queries: who won the women's gold medal curling Answer: Sweden (
What is one country of origin that makes up foreign inhabitants of Sweden ( ? Answer: Syria
when did the chemical attack in Syria happen 2017 Answer: 4 April