Input: Read this: Due to geographical proximity of the Central American countries to the U.S. which has powerful military, economic, and political influences, there were several movements and proposals by the United States during the 19th and 20th centuries to annex some or all of the Central American republics (Costa Rica, El Salvador, Guatemala, Honduras with the formerly British-ruled Bay Islands, Nicaragua, Panama which had the U.S.-ruled Canal Zone territory from 1903 to 1979, and formerly British Honduras or Belize since 1981). However, the U.S. never acted on these proposals from some U.S. politicians; some of which were never delivered or considered seriously. In 2001, El Salvador adopted the U.S. dollar as its currency, while Panama has used it for decades due to its ties to the Canal Zone.
Question: When did El Salvador adopt the US Dollar as its currency?

Output: 2001


Input: Read this: Internationally, the torch and its accompanying party traveled in a chartered Air China Airbus A330 (registered B-6075), painted in the red and yellow colors of the Olympic Games. Air China was chosen by the Beijing Committees of the Olympic Game as the designated Olympic torch carrier in March 2008 for its long-standing participation in the Olympic cause. The plane traveled a total of 137,000 km (85,000 mi) for a duration of 130 days through 21 countries and regions.
Question: How many days did the plane travel?

Output: 130 days


Input: Read this: The 2011 World Wealth Report ranks economic activity in New Delhi at 39, but overall the capital is ranked at 37, above cities like Jakarta and Johannesburg. New Delhi with Beijing shares the top position as the most targeted emerging markets retail destination among Asia-Pacific markets.
Question: According to the 2011 World Health Report, where does New Delhi rank in terms of economic activity?

Output: 39


Input: Read this: While he searched for enlightenment, Gautama combined the yoga practice of his teacher Kalama with what later became known as "the immeasurables".[dubious – discuss] Gautama thus invented a new kind of human, one without egotism.[dubious – discuss] What Thich Nhat Hanh calls the "Four Immeasurable Minds" of love, compassion, joy, and equanimity[full citation needed] are also known as brahmaviharas, divine abodes, or simply as four immeasurables.[web 5] Pema Chödrön calls them the "four limitless ones". Of the four, mettā or loving-kindness meditation is perhaps the best known.[web 5] The Four Immeasurables are taught as a form of meditation that cultivates "wholesome attitudes towards all sentient beings."[web 6][web 7]
Question: What are the "four Immeasurable minds"?

Output:
love, compassion, joy, and equanimity