You will be given a definition of a task first, then some input of the task.
This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: In 1934 the Zagreb Provincial Committee sent Tito to Vienna where all the Central Committee of the Communist Party of Yugoslavia had sought refuge. He was appointed to the Committee and started to appoint allies to him, among them Edvard Kardelj, Milovan ilas, Aleksandar Rankovic and Boris Kidric. In 1935, Tito travelled to the Soviet Union, working for a year in the Balkans section of Comintern. He was a member of the Soviet Communist Party and the Soviet secret police (NKVD). Tito was also involved in recruiting for the Dimitrov Battalion, a group of volunteers serving in the Spanish Civil War. In 1936, the Comintern sent "Comrade Walter" (i.e. Tito) back to Yugoslavia to purge the Communist Party there. In 1937, Stalin had the Secretary-General of the CPY, Milan Gorkic, murdered in Moscow. Subsequently Tito was appointed Secretary-General of the still-outlawed CPY. Question: When was Tito sent to Vienna?
Output:
1934