Input: Article: However many early history books like the Islamic Conquest of Syria Fatuhusham by al-Imam al-Waqidi state that after the conversion to Islam Muawiyah's father Abu Sufyan ibn Harb and his brothers Yazid ibn Abi Sufyan were appointed as commanders in the Muslim armies by Muhammad. Muawiyah, Abu Sufyan ibn Harb, Yazid ibn Abi Sufyan and Hind bint Utbah fought in the Battle of Yarmouk. The defeat of the Byzantine Emperor Heraclius at the Battle of Yarmouk opened the way for the Muslim expansion into Jerusalem and Syria.

Now answer this question: Who was the father of Yazid ibn Abi Sufyan?

Output: Abu Sufyan ibn Harb

Input: Article: Gagarin became a national hero of the Soviet Union and the Eastern Bloc, and a worldwide celebrity. Moscow and other cities in the USSR held mass demonstrations, the scale of which was second only to the World War II Victory Parade of 1945. April 12 was declared Cosmonautics Day in the USSR, and is celebrated today in Russia as one of the official "Commemorative Dates of Russia." In 2011, it was declared the International Day of Human Space Flight by the United Nations.

Now answer this question: April 12, in the USSR, is what special day?

Output: Cosmonautics Day

Input: Article: After the Russian Revolution of 1917 guerrillas throughout Central Asia, known as basmachi, waged a war against Bolshevik armies in a futile attempt to maintain independence. The Bolsheviks prevailed after a four-year war, in which mosques and villages were burned down and the population heavily suppressed. Soviet authorities started a campaign of secularization, practicing Islam, Judaism, and Christianity was discouraged and repressed, and many mosques, churches, and synagogues were closed. As a consequence of the conflict and Soviet agriculture policies, Central Asia, Tajikistan included, suffered a famine that claimed many lives.

Now answer this question: Who went to war against Bolshevick armies?

Output:
guerrillas throughout Central Asia, known as basmachi