Input: Article: In 2004, a large share of natural gas reserves in Iran were untapped. The addition of new hydroelectric stations and the streamlining of conventional coal and oil-fired stations increased installed capacity to 33,000 megawatts. Of that amount, about 75% was based on natural gas, 18% on oil, and 7% on hydroelectric power. In 2004, Iran opened its first wind-powered and geothermal plants, and the first solar thermal plant is to come online in 2009. Iran is the third country in the world to have developed GTL technology.

Now answer this question: When did Iran open its first geothermal plants?

Output: 2004

Input: Article: Although Greg argued that an editor should be free to use his judgment to choose between competing substantive readings, he suggested that an editor should defer to the copy-text when "the claims of two readings ... appear to be exactly balanced. ... In such a case, while there can be no logical reason for giving preference to the copy-text, in practice, if there is no reason for altering its reading, the obvious thing seems to be to let it stand." The "exactly balanced" variants are said to be indifferent.

Now answer this question: Are there times when an editor's judgement should be deferred?

Output: the claims of two readings ... appear to be exactly balanced

Input: Article: In 1775, Patrick Henry delivered his famous "Give me Liberty or Give me Death" speech in St. John's Church in Richmond, crucial for deciding Virginia's participation in the First Continental Congress and setting the course for revolution and independence. On April 18, 1780, the state capital was moved from the colonial capital of Williamsburg to Richmond, to provide a more centralized location for Virginia's increasing westerly population, as well as to isolate the capital from British attack. The latter motive proved to be in vain, and in 1781, under the command of Benedict Arnold, Richmond was burned by British troops, causing Governor Thomas Jefferson to flee as the Virginia militia, led by Sampson Mathews, defended the city.

Now answer this question: Who led the militia that defended Richmond?

Output:
Sampson Mathews