Problem: Please answer a question about the following article about American Idol:
The most popular contestants are usually not revealed in the results show. Instead, typically the three contestants (two in later rounds) who received the lowest number of votes are called to the center of the stage. One of these three is usually sent to safety; however the two remaining are not necessarily the bottom two. The contestant with the fewest votes is then revealed and eliminated from the competition. A montage of the eliminated contestant's time on the show is played and they give their final performance. However, in season six, during the series' first ever Idol Gives Back episode, no contestant was eliminated, but on the following week, two were sent home. Moreover, starting in season eight, the judges may overturn viewers' decision with a "Judges' Save" if they unanimously agree to. "The save" can only be used once, and only up through the top five. In the eighth, ninth, tenth, and fourteenth seasons, a double elimination then took place in the week following the activation of the save, but in the eleventh and thirteenth seasons, a regular single elimination took place. The save was not activated in the twelfth season and consequently, a non-elimination took place in the week after its expiration with the votes then carrying over into the following week.
How many time can the judges save be used each season?
A: once


Question: Read this and answer the question

The service's B-2A aircraft entered service in the 1990s, its B-1B aircraft in the 1980s and its current B-52H aircraft in the early 1960s. The B-52 Stratofortress airframe design is over 60 years old and the B-52H aircraft currently in the active inventory were all built between 1960 and 1962. The B-52H is scheduled to remain in service for another 30 years, which would keep the airframe in service for nearly 90 years, an unprecedented length of service for any aircraft. The B-21 is projected to replace the B-52 and parts of the B-1B force by the mid-2020s.

When did the B-2A aircraft enter into service of the US Air Force? 
Answer: 1990s


Problem: Plymouth railway station, which opened in 1877, is managed by Great Western Railway and also sees trains on the CrossCountry network. Smaller stations are served by local trains on the Tamar Valley Line and Cornish Main Line. First Great Western have come under fire recently, due to widespread rail service cuts across the south-west, which affect Plymouth greatly. Three MPs from the three main political parties in the region have lobbied that the train services are vital to its economy.
When did Plymouth's railroad station open for service?
The answer is the following: 1877


Some consider koshari (a mixture of rice, lentils, and macaroni) to be the national dish. Fried onions can be also added to koshari. In addition, ful medames (mashed fava beans) is one of the most popular dishes. Fava bean is also used in making falafel (also known as "ta'meyya"), which may have originated in Egypt and spread to other parts of the Middle East. Garlic fried with coriander is added to mulukhiyya, a popular green soup made from finely chopped jute leaves, sometimes with chicken or rabbit.
What can be added to koshari?
Fried onions


Input: Web browser
Today, most commercial web browsers are paid by search engine companies to make their engine default, or to include them as another option. For example, Google pays Mozilla, the maker of Firefox, to make Google Search the default search engine in Firefox. Mozilla makes enough money from this deal that it does not need to charge users for Firefox. In addition, Google Search is also (as one would expect) the default search engine in Google Chrome. Users searching for websites or items on the Internet would be led to Google's search results page, increasing ad revenue and which funds development at Google and of Google Chrome.

What other browser has Google as the default search engine?
Output: Chrome


Problem: Please answer a question about the following article about New York City:
New York City's most important economic sector lies in its role as the headquarters for the U.S.financial industry, metonymously known as Wall Street. The city's securities industry, enumerating 163,400 jobs in August 2013, continues to form the largest segment of the city's financial sector and an important economic engine, accounting in 2012 for 5 percent of the city's private sector jobs, 8.5 percent (US$3.8 billion) of its tax revenue, and 22 percent of the city's total wages, including an average salary of US$360,700. Many large financial companies are headquartered in New York City, and the city is also home to a burgeoning number of financial startup companies.
How much tax revenue does the securities industry generate?
A:
US$3.8 billion