Input: Gramophone record
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.

What was the cause of delicate and fine sound loss?
Output: took a lot of sound energy


Input: Article: The title of "world's oldest airport" is disputed, but College Park Airport in Maryland, US, established in 1909 by Wilbur Wright, is generally agreed to be the world's oldest continually operating airfield, although it serves only general aviation traffic. Bisbee-Douglas International Airport in Arizona was declared "the first international airport of the Americas" by US president Franklin D. Roosevelt in 1943. Pearson Field Airport in Vancouver, Washington had a dirigible land in 1905 and planes in 1911 and is still in use. Bremen Airport opened in 1913 and remains in use, although it served as an American military field between 1945 and 1949. Amsterdam Airport Schiphol opened on September 16, 1916 as a military airfield, but only accepted civil aircraft from December 17, 1920, allowing Sydney Airport in Sydney, Australia—which started operations in January 1920—to claim to be one of the world's oldest continually operating commercial airports. Minneapolis-Saint Paul International Airport in Minneapolis-Saint Paul, Minnesota, opened in 1920 and has been in continuous commercial service since. It serves about 35,000,000 passengers each year and continues to expand, recently opening a new 11,000 foot (3,355 meter) runway. Of the airports constructed during this early period in aviation, it is one of the largest and busiest that is still currently operating. Rome Ciampino Airport, opened 1916, is also a contender, as well as the Don Mueang International Airport near Bangkok,Thailand, which opened in 1914. Increased aircraft traffic during World War I led to the construction of landing fields. Aircraft had to approach these from certain directions and this led to the development of aids for directing the approach and landing slope.

Now answer this question: In what year was the College Park Airport established?

Output: 1909


Article: Until March 1, 2009, the Borough President of the Bronx was Adolfo Carrión Jr., elected as a Democrat in 2001 and 2005 before retiring early to direct the White House Office of Urban Affairs Policy. His successor, Democratic New York State Assembly member Rubén Díaz, Jr., who won a special election on April 21, 2009 by a vote of 86.3% (29,420) on the "Bronx Unity" line to 13.3% (4,646) for the Republican district leader Anthony Ribustello on the "People First" line, became Borough President on May 1.

Question: Who succeeded Carrion Jr.?
Ans: Rubén Díaz, Jr.


Here is a question about this article: By the end of the 18th century a new room in the pub was established: the saloon.[citation needed] Beer establishments had always provided entertainment of some sort—singing, gaming or sport.[citation needed] Balls Pond Road in Islington was named after an establishment run by a Mr Ball that had a duck pond at the rear, where drinkers could, for a fee, go out and take a potshot at the ducks. More common, however, was a card room or a billiard room.[citation needed] The saloon was a room where for an admission fee or a higher price of drinks, singing, dancing, drama or comedy was performed and drinks would be served at the table.[citation needed] From this came the popular music hall form of entertainment—a show consisting of a variety of acts.[citation needed] A most famous London saloon was the Grecian Saloon in The Eagle, City Road, which is still famous because of a nursery rhyme: "Up and down the City Road / In and out The Eagle / That's the way the money goes / Pop goes the weasel." This meant that the customer had spent all his money at The Eagle, and needed to pawn his "weasel" to get some more. The meaning of the "weasel" is unclear but the two most likely definitions are: a flat iron used for finishing clothing; or rhyming slang for a coat (weasel and stoat).
What is the answer to this question: In what century did saloons become established?
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So... 18th


The problem: Answer a question about this article:
The artificial intelligence (AI) of enemies in Twilight Princess is more advanced than that of enemies in The Wind Waker. Enemies react to defeated companions and to arrows or slingshot pellets that pass by, and can detect Link from a greater distance than was possible in previous games.
What feature of the enemies in Twilight Princess is more advanced?
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The answer: artificial intelligence


The problem: Answer a question about this article:
Mandolin has also been used in blues music, most notably by Ry Cooder, who performed outstanding covers on his very first recordings, Yank Rachell, Johnny "Man" Young, Carl Martin, and Gerry Hundt. Howard Armstrong, who is famous for blues violin, got his start with his father's mandolin and played in string bands similar to the other Tennessee string bands he came into contact with, with band makeup including "mandolins and fiddles and guitars and banjos. And once in a while they would ease a little ukulele in there and a bass fiddle." Other blues players from the era's string bands include Willie Black (Whistler And His Jug Band), Dink Brister, Jim Hill, Charles Johnson, Coley Jones (Dallas String Band), Bobby Leecan (Need More Band), Alfred Martin, Charlie McCoy (1909-1950), Al Miller, Matthew Prater, and Herb Quinn.
Who got his start with his father's mandolin? 
****
The answer:
Howard Armstrong,