Input: Article: Serbo-Croatian was standardized in the mid-19th-century Vienna Literary Agreement by Croatian and Serbian writers and philologists, decades before a Yugoslav state was established. From the very beginning, there were slightly different literary Serbian and Croatian standards, although both were based on the same Shtokavian subdialect, Eastern Herzegovinian. In the 20th century, Serbo-Croatian served as the official language of the Kingdom of Yugoslavia (when it was called "Serbo-Croato-Slovenian"), and later as one of the official languages of the Socialist Federal Republic of Yugoslavia. The breakup of Yugoslavia affected language attitudes, so that social conceptions of the language separated on ethnic and political lines. Since the breakup of Yugoslavia, Bosnian has likewise been established as an official standard in Bosnia and Herzegovina, and there is an ongoing movement to codify a separate Montenegrin standard. Serbo-Croatian thus generally goes by the ethnic names Serbian, Croatian, Bosnian, and sometimes Montenegrin and Bunjevac.

Now answer this question: What was the name of the document that standardized Serbo-Croatian?

Output: Vienna Literary Agreement

Input: Article: The Republic of Liberia, beginning as a settlement of the American Colonization Society (ACS), declared its independence on July 26, 1847. The United States did not recognize Liberia's independence until during the American Civil War on February 5, 1862. Between January 7, 1822 and the American Civil War, more than 15,000 freed and free-born Black Americans from United States and 3,198 Afro-Caribbeans relocated to the settlement. The Black American settlers carried their culture with them to Liberia. The Liberian constitution and flag were modeled after the United States. In January 3, 1848 Joseph Jenkins Roberts, a wealthy free-born Black American from Virginia who settled in Liberia, was elected as Liberia's first president after the people proclaimed independence.

Now answer this question: When did the united states recognize the republic of Liberia's independence?

Output: February 5, 1862. Between January 7, 182

Input: Article: This prevented Eisenhower from openly condemning Joseph McCarthy's highly criticized methods against communism. To facilitate relations with Congress, Eisenhower decided to ignore McCarthy's controversies and thereby deprive them of more energy from involvement of the White House. This position drew criticism from a number of corners. In late 1953 McCarthy declared on national television that the employment of communists within the government was a menace and would be a pivotal issue in the 1954 Senate elections. Eisenhower was urged to respond directly and specify the various measures he had taken to purge the government of communists. Nevertheless, he refused.

Now answer this question: In what year did Joseph McCarthy declare that the federal government was employing communists?

Output:
1953