Question: In WWI, what side was the country the performer of Je vais me marier, Marie belongs to on?

full_context: Document 1: Patrick Sébastien: Patrick Boutot (born 14 November 1953 in Brive-la-Gaillarde, Corrèze), better known as Patrick Sébastien, is a French television host, producer and media personality, radio host, singer, writer, producer, director, impressionist entertainer, comedian, TV and film actor, and former president of the French rugby team CA Brive.
Document 2: Patrice et Mario: Patrice et Mario were an Italian singer-guitarist duo popular in France the 1940-1950s. Patrice (Patrizzio Paganessi, 1915-26 April 1992) and Mario (Mario Moro, 1918 - 9 August 2002) were part of the vogue for Mediterranean music in France exemplified by Luis Mariano and Tino Rossi. Their popularity in Africa led to their name being used by another duo, consisting of Philippe Vungbo (alias Lando) and Cantador Rossignol.
Document 3: Switzerland: Apart from the United Nations headquarters, the Swiss Confederation is host to many UN agencies, like the World Health Organization (WHO), the International Labour Organization (ILO), the International Telecommunication Union (ITU), the United Nations High Commissioner for Refugees (UNHCR) and about 200 other international organisations, including the World Trade Organization and the World Intellectual Property Organization. The annual meetings of the World Economic Forum in Davos bring together top international business and political leaders from Switzerland and foreign countries to discuss important issues facing the world, including health and the environment. Additionally the headquarters of the Bank for International Settlements (BIS) are located in Basel since 1930.
Document 4: I Love America (Patrick Juvet song): "I Love America" is 1978 disco hit by Swiss-born performer Patrick Juvet. Along with the tracks, "Where Is My Woman" and "Got A Feeling", it peaked at number five on the disco chart in the United States. It was included in the compilation album, "A Night at Studio 54", in 1979.
Document 5: Un banc, un arbre, une rue: "Un banc, un arbre, une rue" ("A Bench, a Tree, a Street") was the winning song of the Eurovision Song Contest 1971 performed in French by French singer Séverine, representing Monaco.
Document 6: Patrick Moutal: Patrick Moutal is a French sitarist and musicologist. He has been teaching north Indian classical music at the Paris Conservatoire (CNSMDP) since 1984 (Jazz & Improvised Musics and Pedagogy dpts).
Document 7: Henri Christiné: The son of a French Savoyard watchmaker, Christiné was born in Geneva, Switzerland. He began by teaching at the lycée in Geneva, while pursuing his interest in music and playing organ in a local church. He married a cafe singer whose troupe was passing through Geneva, and went with her to Nice where they were married. He made his home in France, writing songs firstly for his wife and then for popular singers such as Mayol, Dranem, and Fragson. He also conducted for the music hall at the Place Clichy.
Document 8: Le Chant de Mallory: "Le chant de Mallory" (English translation: "Mallory's Song") was the French entry in the Eurovision Song Contest 1964, performed in French by Rachel. The song was written by André Popp and Pierre Cour, the team behind France's winning entry in the 1960 Contest, "Tom Pillibi".
Document 9: Je suis l'enfant soleil: "Je suis l'enfant soleil" (translated: "I Am the Sun Child" or "I'm A Child of the Sun") was the French entry in the Eurovision Song Contest 1979, performed in French by Anne-Marie David. David had won Eurovision six years earlier, representing Luxembourg at the 1973 Contest with "Tu te reconnaîtras".
Document 10: Switzerland: Traditionally, Switzerland avoids alliances that might entail military, political, or direct economic action and has been neutral since the end of its expansion in 1515. Its policy of neutrality was internationally recognised at the Congress of Vienna in 1815. Only in 2002 did Switzerland become a full member of the United Nations and it was the first state to join it by referendum. Switzerland maintains diplomatic relations with almost all countries and historically has served as an intermediary between other states. Switzerland is not a member of the European Union; the Swiss people have consistently rejected membership since the early 1990s. However, Switzerland does participate in the Schengen Area.
Document 11: Switzerland: A large number of international institutions have their seats in Switzerland, in part because of its policy of neutrality. Geneva is the birthplace of the Red Cross and Red Crescent Movement and the Geneva Conventions and, since 2006, hosts the United Nations Human Rights Council. Even though Switzerland is one of the most recent countries to have joined the United Nations, the Palace of Nations in Geneva is the second biggest centre for the United Nations after New York, and Switzerland was a founding member and home to the League of Nations.
Document 12: Patrick Juvet: Patrick Juvet (born 21 August 1950, in Montreux, Switzerland) is a former model turned singer-songwriter, who had a string of hit records in France. While his early career was focused on making pop records, he found international success as a disco music performer in the latter half of the 1970s.
Document 13: Switzerland: Switzerland's trade was blockaded by both the Allies and by the Axis. Economic cooperation and extension of credit to the Third Reich varied according to the perceived likelihood of invasion and the availability of other trading partners. Concessions reached a peak after a crucial rail link through Vichy France was severed in 1942, leaving Switzerland completely surrounded by the Axis. Over the course of the war, Switzerland interned over 300,000 refugees and the International Red Cross, based in Geneva, played an important part during the conflict. Strict immigration and asylum policies as well as the financial relationships with Nazi Germany raised controversy, but not until the end of the 20th century.
Document 14: Je vais me marier, Marie: "Je vais me marier, Marie" (English translation: "I´m getting married, Mary") was the Swiss entry in the Eurovision Song Contest 1973, performed in French by Patrick Juvet.
Document 15: Bern: A number of congresses of the socialist First and Second Internationals were held in Bern, particularly during World War I when Switzerland was neutral; see Bern International.
ground_truth: Switzerland was neutral
sub_queries: Je vais me marier, Marie >> performer Answer: Patrick Juvet
Which country does Patrick Juvet belong to? Answer: Switzerland
In World War I, what side was Switzerland on? Answer: Switzerland was neutral