You will be given a definition of a task first, then some input of the task.
In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: The Belarusian government sponsors annual cultural festivals such as the Slavianski Bazaar in Vitebsk, which showcases Belarusian performers, artists, writers, musicians, and actors. Several state holidays, such as Independence Day and Victory Day, draw big crowds and often include displays such as fireworks and military parades, especially in Vitebsk and Minsk. The government's Ministry of Culture finances events promoting Belarusian arts and culture both inside and outside the country.
Belarusian literature began with 11th- to 13th-century religious scripture, such as the 12th-century poetry of Cyril of Turaw.By the 16th century, Polotsk resident Francysk Skaryna translated the Bible into Belarusian. It was published in Prague and Vilnius sometime between 1517 and 1525, making it the first book printed in Belarus or anywhere in Eastern Europe. The modern era of Belarusian literature began in the late 19th century; one prominent writer was Yanka Kupala. Many Belarusian writers of the time, such as Uładzimir Žyłka, Kazimir Svayak, Yakub Kolas, Źmitrok Biadula, and Maksim Haretski, wrote for Nasha Niva, a Belarusian-language paper published that was previously published in Vilnius but now is published in Minsk.
After Belarus was incorporated into the Soviet Union, the Soviet government took control of the Republic's cultural affairs. At first, a policy of "Belarusianization" was followed in the newly formed Byelorussian SSR. This policy was reversed in the 1930s, and the majority of prominent Belarusian intellectuals and nationalist advocates were either exiled or killed in Stalinist purges. The free development of literature occurred only in Polish-held territory until Soviet occupation in 1939. Several poets and authors went into exile after the Nazi occupation of Belarus and would not return until the 1960s.The last major revival of Belarusian literature occurred in the 1960s with novels published by Vasil Bykaŭ and Uladzimir Karatkievich. An influential author who devoted his work to awakening the awareness of the catastrophes the country has suffered, was Ales Adamovich. He was named by Svetlana Alexievich, the Belarusian winner of the Nobel Prize in Literature 2015, as "her main teacher, who helped her to find a path of her own".
Output:
What is the name of the policy that was reversed in the 1930s?