Input: Article: The Antikythera mechanism is believed to be the earliest mechanical analog "computer", according to Derek J. de Solla Price. It was designed to calculate astronomical positions. It was discovered in 1901 in the Antikythera wreck off the Greek island of Antikythera, between Kythera and Crete, and has been dated to circa 100 BC. Devices of a level of complexity comparable to that of the Antikythera mechanism would not reappear until a thousand years later.

Now answer this question: When was the Antikythera mechanism discovered?

Output: 1901

Input: Article: As civil wars engulfed several Central American countries in the 1980s, hundreds of thousands of Salvadorans fled their country and came to the United States. Between 1980 and 1990, the Salvadoran immigrant population in the United States increased nearly fivefold from 94,000 to 465,000. The number of Salvadoran immigrants in the United States continued to grow in the 1990s and 2000s as a result of family reunification and new arrivals fleeing a series of natural disasters that hit El Salvador, including earthquakes and hurricanes. By 2008, there were about 1.1 million Salvadoran immigrants in the United States.

Now answer this question: How many Salvadorans are in America now?

Output: By 2008, there were about 1.1 million Salvadoran immigrants in the United States.

Input: Article: The set G is called the underlying set of the group (G, ). Often the group's underlying set G is used as a short name for the group (G, ). Along the same lines, shorthand expressions such as "a subset of the group G" or "an element of group G" are used when what is actually meant is "a subset of the underlying set G of the group (G, )" or "an element of the underlying set G of the group (G, )". Usually, it is clear from the context whether a symbol like G refers to a group or to an underlying set.

Now answer this question: What is often utilized as a short name for the group?

Output:
the group's underlying set