Instructions: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.
Input: Question: Was the party that Küchenmeister joined at the end of the first world war founded prior to 1900? Passage:In 1917 he volunteered to become a sailor the Imperial German Navy during World War I and on 3 November 1918 was part of the Kiel mutiny. At the end of the first world war he joined the Social Democratic Party of Germany. In 1920, he became a communist and joined the Communist Party of Germany (KPD). In 1921 he was promoted to a KPD party functionary, an Ortsgruppenleiter for the town of Ahlen.During the same year, Küchenmeister started work as an editor on the Westphalian Arbeiterzeitung (Workers Party), that was considered one of the most radical social-democractic newspapers in Germany. He also edited the communist newspaper, the Ruhr Echo in Essen, a position he held until 1926. In 1926 he was expelled from the KPD for non-proletarian behaviour and was suspected of being a police informer and embezzeler and this stigmatized his position as an orthodox communist, making him seen by his peer group as a traitor and ex-comrade. To earn a living he became an advertiser and freelance writer. In the six years that followed he wrote a biography of the German preacher and radical theologian Thomas Müntzer and the German sculptor and woodcarver Tilman Riemenschneider.

Output:
At the end of the first world war he joined the Social Democratic Party of Germany