Input: Article: Hydrogen is the only element that has different names for its isotopes in common use today. During the early study of radioactivity, various heavy radioactive isotopes were given their own names, but such names are no longer used, except for deuterium and tritium. The symbols D and T (instead of 2H and 3H) are sometimes used for deuterium and tritium, but the corresponding symbol for protium, P, is already in use for phosphorus and thus is not available for protium. In its nomenclatural guidelines, the International Union of Pure and Applied Chemistry allows any of D, T, 2H, and 3H to be used, although 2H and 3H are preferred.

Now answer this question: What are the preferred symbols for deuterium and tritium?

Output: 2H and 3H

Article: Several days after the referendum, the Resident Commissioner Pedro Pierluisi, Governor Luis Fortuno, and Governor-elect Alejandro Garcia Padilla wrote separate letters to the President of the United States Barack Obama addressing the results of the voting. Pierluisi urged Obama to begin legislation in favor of the statehood of Puerto Rico, in light of its win in the referendum. Fortuno urged him to move the process forward. Garcia Padilla asked him to reject the results because of their ambiguity. The White House stance related to the November 2012 plebiscite was that the results were clear, the people of Puerto Rico want the issue of status resolved, and a majority chose statehood in the second question. Former White House director of Hispanic media stated, "Now it is time for Congress to act and the administration will work with them on that effort, so that the people of Puerto Rico can determine their own future."

Question: What politicians pushed for statehood for Puerto Rico?
Ans: Resident Commissioner Pedro Pierluisi, Governor Luis Fortuno

Here is a question about this article: His father's career as a university professor influenced Friedrich's goals later in life. Both of his grandfathers, who lived long enough for Friedrich to know them, were scholars. Franz von Juraschek was a leading economist in Austria-Hungary and a close friend of Eugen Bohm von Bawerk, one of the founders of the Austrian School of Economics. Von Juraschek was a statistician and was later employed by the Austrian government. Friedrich's paternal grandfather, Gustav Edler von Hayek, taught natural sciences at the Imperial Realobergymnasium (secondary school) in Vienna. He wrote systematic works in biology, some of which are relatively well known.
What is the answer to this question: What did August von Hayek's father write?
****
So... systematic works in biology

The problem: Answer a question about this article:
Some of the cleaner energy facilities in Boston include the Allston green district, with three ecologically compatible housing facilities. Boston is also breaking ground on multiple green affordable housing facilities to help reduce the carbon footprint of the city while simultaneously making these initiatives financially available to a greater population. Boston's climate plan is updated every three years and was most recently modified in 2013. This legislature includes the Building Energy Reporting and Disclosure Ordinance, which requires the city's larger buildings to disclose their yearly energy and water use statistics and partake in an energy assessment every five years. These statistics are made public by the city, thereby increasing incentives for buildings to be more environmentally conscious.
When was the last time the climate plan was modified?
****
The answer: in 2013

Problem: Please answer a question about the following article about Beyonce:
On February 6, 2016, one day before her performance at the Super Bowl, Beyonce released a new single exclusively on music streaming service Tidal called "Formation".
When did Beyonce release Formation?
A: February 6, 2016

Question: Read this and answer the question

Manhattan's skyline, with its many skyscrapers, is universally recognized, and the city has been home to several of the tallest buildings in the world. As of 2011, New York City had 5,937 high-rise buildings, of which 550 completed structures were at least 330 feet (100 m) high, both second in the world after Hong Kong, with over 50 completed skyscrapers taller than 656 feet (200 m). These include the Woolworth Building (1913), an early gothic revival skyscraper built with massively scaled gothic detailing.

What city has the most high-rise buildings in the world?
Answer:
Hong Kong