Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: How old was Herman Gorter when De Tribune was founded? Passage:In 1907 Jan Ceton, Willem van Ravesteyn and David Wijnkoop founded De Tribune (The Tribune), a magazine in which they criticized the leadership of the Social Democratic Workers' Party (SDAP) of which they were members. They maintained orthodox marxist views and expected a proletarian revolution. They opposed the leadership of the SDAP, who were more oriented towards more a revisionist ideology and a parliamentary and reformist political strategy. At a party congress in Deventer held on February 14, 1909 the leadership of the SDAP demanded that they stop publishing De Tribune or be expelled from the party. Wijnkoop and Ceton refused and they and their supporters, including the poet Herman Gorter and the mathematician Gerrit Mannoury, left to form a breakaway party. This split was the first such split in Western European European Socialist parties, although others followed. There had already been a split between the Bolsheviks and Mensheviks in the Russian Social Democratic Labour Party and with the break away Tesnjaki group which broke from the Bulgarian Social Democratic Party. On March 14, 1909 the dissenters founded a new party called the Social Democratic Party (SDP). They had a membership of around 400 spread across different cities: Amsterdam (160), Rotterdam (65), The Hague (45), Leiden (56), Utrecht (25), Bussum (15).


b