Problem: Please answer a question about the following article about Hydrogen:
Hydrogen has three naturally occurring isotopes, denoted 1H, 2H and 3H. Other, highly unstable nuclei (4H to 7H) have been synthesized in the laboratory but not observed in nature.
Which isotopes have unstable nuclei?
A: 4H to 7H
Problem: Please answer a question about the following article about Videoconferencing:
In the increasingly globalized film industry, videoconferencing has become useful as a method by which creative talent in many different locations can collaborate closely on the complex details of film production. For example, for the 2013 award-winning animated film Frozen, Burbank-based Walt Disney Animation Studios hired the New York City-based husband-and-wife songwriting team of Robert Lopez and Kristen Anderson-Lopez to write the songs, which required two-hour-long transcontinental videoconferences nearly every weekday for about 14 months.
In what city were the songwriting team of Frozen located?
A: New York City
Problem: Please answer a question about the following article about Germans:
Of approximately 100 million native speakers of German in the world, roughly 80 million consider themselves Germans.[citation needed] There are an additional 80 million people of German ancestry mainly in the United States, Brazil (mainly in the South Region of the country), Argentina, Canada, South Africa, the post-Soviet states (mainly in Russia and Kazakhstan), and France, each accounting for at least 1 million.[note 2] Thus, the total number of Germans lies somewhere between 100 and more than 150 million, depending on the criteria applied (native speakers, single-ancestry ethnic Germans, partial German ancestry, etc.).
How many people in the world claim to be from German ancestry?
A: 100 and more than 150 million
Problem: Please answer a question about the following article about American Idol:
The "Fan Save" was introduced in the fourteenth season. During the finals, viewers are given a five-minute window to vote for the contestants in danger of elimination by using their Twitter account to decide which contestant will move on to the next show, starting with the Top 8.
In which season was the "Fan Save" first used?
A:
fourteen