Input: Article: Delicate sounds and fine overtones were mostly lost, because it took a lot of sound energy to vibrate the recording horn diaphragm and cutting mechanism. There were acoustic limitations due to mechanical resonances in both the recording and playback system. Some pictures of acoustic recording sessions show horns wrapped with tape to help mute these resonances. Even an acoustic recording played back electrically on modern equipment sounds like it was recorded through a horn, notwithstanding a reduction in distortion because of the modern playback. Toward the end of the acoustic era, there were many fine examples of recordings made with horns.

Now answer this question: Why do photos show take on horns?

Output: help mute these resonances


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.

Question: Who went to war against Bolshevick armies?
Ans: guerrillas throughout Central Asia, known as basmachi


Here is a question about this article: The release of a video-game Starpower: Beyoncé was cancelled after Beyoncé pulled out of a $100 million with GateFive who alleged the cancellation meant the sacking of 70 staff and millions of pounds lost in development. It was settled out of court by her lawyers in June 2013 who said that they had cancelled because GateFive had lost its financial backers. Beyoncé also has had deals with American Express, Nintendo DS and L'Oréal since the age of 18.
What is the answer to this question: How was the suit settled?
****
So... out of court


The problem: Answer a question about this article:
The term "Immersive app" had been used internally by Microsoft developers to refer to the apps prior to the first official presentation of Windows 8, after which they were referred to as "Metro-style apps" in reference to the Metro design language. The term was phased out in August 2012; a Microsoft spokesperson denied rumors that the change was related to a potential trademark issue, and stated that "Metro" was only a codename that would be replaced prior to Windows 8's release. Following these reports, the terms "Modern UI-style apps", "Windows 8-style apps" and "Windows Store apps" began to be used by various Microsoft documents and material to refer to the new apps. In an interview on September 12, 2012, Soma Somasegar (vice president of Microsoft's development software division) confirmed that "Windows Store apps" would be the official term for the apps. An MSDN page explaining the Metro design language uses the term "Modern design" to refer to the language as a whole.
What are apps after the introduction of Windows 8 called?
****
The answer: Metro-style apps


Problem: Please answer a question about the following article about Southampton:
Following the Norman Conquest in 1066, Southampton became the major port of transit between the then capital of England, Winchester, and Normandy. Southampton Castle was built in the 12th century and by the 13th century Southampton had become a leading port, particularly involved in the import of French wine in exchange for English cloth and wool.
During the 13th century, what did Southampton get in trade for English cloth and wool?
A: French wine


Question: Read this and answer the question

Greater London's population declined steadily in the decades after the Second World War, from an estimated peak of 8.6 million in 1939 to around 6.8 million in the 1980s. The principal ports for London moved downstream to Felixstowe and Tilbury, with the London Docklands area becoming a focus for regeneration, including the Canary Wharf development. This was borne out of London's ever-increasing role as a major international financial centre during the 1980s. The Thames Barrier was completed in the 1980s to protect London against tidal surges from the North Sea.

What event preceded a substantial decrease in the average population in London? 
Answer:
the Second World War