Question: In 2017, when did the chemical attack occur in one of the countries that makes up foreign inhabitants of the country of citizenship for the spouse of Karin Larsson?

full_context: Document 1: Pieter Franciscus Dierckx: He also worked in the historic-Romantice genre, taking inspiration from the leading Romantic painter Henri Leys. Franz Courtens held Pieter Dierckx in high esteem.  He recommended Dierckx for an important commission in the town of Lokeren: two paintings for the town hall showing historic events. The first one depicts the emperor Charles V handing over the privilege of holding a market every week to the deputies of the city in 1555. The other panel shows the foundation of the Saint Sebastian guild by Albrecht and Isabella in 1613, while issuing the privilege for holding a yearly market. These are big paintings, confirming the greatness of the  school of Leys. In addition they show that Pieter Dierckx has the ability to expertly picture an historic event.
Document 2: 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 3: Hans Gude: Hans Fredrik Gude (13 March 1825 – 17 August 1903) was a Norwegian romanticist painter and is considered along with Johan Christian Dahl to be one of Norway's foremost landscape painters. He has been called a mainstay of Norwegian National Romanticism. He is associated with the Düsseldorf school of painting.
Document 4: 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 5: Karin Bergöö Larsson: Karin Larsson, née Bergöö, (3 October 1859 – 18 February 1928) was a Swedish artist and designer who collaborated with her husband, Carl Larsson, as well as being often depicted in his paintings.
Document 6: Paul Gustav Fischer: During the period when he actively painted, Danish art was dominated by Laurits Tuxen. Despite Fischer's lack of critical recognition during his lifetime, his art sold well. One major event in which he succeeded over Tuxen was when Sweden transferred the sovereignty of Norway back to the Norwegians - Fischer rather than Tuxen got the commission from the King of Norway to paint the event.
Document 7: My Wife's Lovers: My Wife's Lovers is a canvas painting by Austrian artist Carl Kahler (1855–1906) depicting forty-two of American millionaire Kate Birdsall Johnson's Turkish Angora cats. The title of the painting was potentially conceived by her husband, who had died in 1889 and may have referred to the cats with the phrase. Measuring 6 ft×8.5 ft, the canvas weighs .
Document 8: Carinhall: Named in honour of his Swedish first wife, Carin Göring (1888–1931), the residence was constructed in stages from 1933 on a large scale, but in the manner of a hunting lodge. The main architect was Werner March, designer of the Olympic stadium in Berlin. Carin Göring's remains had first been interred in Sweden following her death, but were moved to Carinhall in 1934 and placed in a mausoleum on the grounds.
Document 9: 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 10: Kristians Tonny: During the late 1930s Surrealist exhibitions were held in a number of major European cities and together with Georges Hugnet, Kristians Tonny was involved in organizing the first international Surrealist exhibition in the Netherlands, held in the art gallery owned by his parents, "Galerie Robert" in Amsterdam. Although a major event, the exhibition was not a complete success. The reason for this was that, with the exception of Kristians Tonny, no Dutch Surrealists (such as J.H. Moesman en Willem Wagenaar) were invited. The reason for this being that Georges Hugnet didn’t believe that, with the exception of Kristians Tonny, there were any Dutch Surrealists. Among those that did participate were André Breton, Max Ernst, Paul Eluard, E.L.T. Mésens and others. As a consequence, in the Netherlands a major interest in Surrealism didn’t happen until the 1960s, something that would, after his return to the Netherlands in 1949, prove to be a major inconvenience to Kristians Tonny in finding an audience for his work.
Document 11: 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 12: 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 13: 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 14: 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 15: Scharinska villan: Scharinska villan is a pink building at the street Storgatan 63-65, located next to Döbelns park in Umeå, Sweden. Scharinska villan was designed by the architect Ragnar Östberg and it was erected in 1904-1905 for Egil Unander-Scharin and his family. In the 1950s the building also housed the family business AB Scharins Söner.
ground_truth: 4 April
sub_queries: Karin Larsson >> spouse Answer: Carl Larsson
Carl Larsson >> country of citizenship 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