Input: Article: Increased interest in modern a cappella (particularly collegiate a cappella) can be seen in the growth of awards such as the Contemporary A Cappella Recording Awards (overseen by the Contemporary A Cappella Society) and competitions such as the International Championship of Collegiate A Cappella for college groups and the Harmony Sweepstakes for all groups. In December 2009, a new television competition series called The Sing-Off aired on NBC. The show featured eight a cappella groups from the United States and Puerto Rico vying for the prize of $100,000 and a recording contract with Epic Records/Sony Music. The show was judged by Ben Folds, Shawn Stockman, and Nicole Scherzinger and was won by an all-male group from Puerto Rico called Nota. The show returned for a second and third season, won by Committed and Pentatonix, respectively.

Now answer this question: Who won The Sing-Off final season?

Output: Pentatonix


Article: In inorganic chemistry, hydrides can also serve as bridging ligands that link two metal centers in a coordination complex. This function is particularly common in group 13 elements, especially in boranes (boron hydrides) and aluminium complexes, as well as in clustered carboranes.

Question: What group is briging ligands most common in?
Ans: group 13


Here is a question about this article: Deciding to give up his lucrative private Boston practice, Bell retained only two students, six-year-old "Georgie" Sanders, deaf from birth, and 15-year-old Mabel Hubbard. Each pupil would play an important role in the next developments. George's father, Thomas Sanders, a wealthy businessman, offered Bell a place to stay in nearby Salem with Georgie's grandmother, complete with a room to "experiment". Although the offer was made by George's mother and followed the year-long arrangement in 1872 where her son and his nurse had moved to quarters next to Bell's boarding house, it was clear that Mr. Sanders was backing the proposal. The arrangement was for teacher and student to continue their work together, with free room and board thrown in. Mabel was a bright, attractive girl who was ten years Bell's junior, but became the object of his affection. Having lost her hearing after a near-fatal bout of scarlet fever close to her fifth birthday,[N 13] she had learned to read lips but her father, Gardiner Greene Hubbard, Bell's benefactor and personal friend, wanted her to work directly with her teacher.
What is the answer to this question: What was Georgie's father's name?
****
So... Thomas Sanders


The problem: Answer a question about this article:
Arizona, south of the Gila River was legally bought from Mexico in the Gadsden Purchase on June 8, 1854. Tucson became a part of the United States of America, although the American military did not formally take over control until March 1856. In 1857 Tucson became a stage station on the San Antonio-San Diego Mail Line and in 1858 became 3rd division headquarters of the Butterfield Overland Mail until the line shut down in March 1861. The Overland Mail Corporation attempted to continue running, however following the Bascom Affair, devastating Apache attacks on the stations and coaches ended operations in August 1861.[citation needed]
What year did the Overland Mail Corporation end operations?
****
The answer: 1861


Problem: Please answer a question about the following article about London:
There are many accents that are traditionally thought of as London accents. The most well known of the London accents long ago acquired the Cockney label, which is heard both in London itself, and across the wider South East England region more generally. The accent of a 21st-century 'Londoner' varies widely; what is becoming more and more common amongst the under-30s however is some fusion of Cockney with a whole array of 'ethnic' accents, in particular Caribbean, which form an accent labelled Multicultural London English (MLE). The other widely heard and spoken accent is RP (Received Pronunciation) in various forms, which can often be heard in the media and many of other traditional professions and beyond, although this accent is not limited to London and South East England, and can also be heard selectively throughout the whole UK amongst certain social groupings.
What is the best-known London accent known as?
A: Cockney


Question: Read this and answer the question

He was moved to the Bureau of Topography of the Committee of Public Safety and sought unsuccessfully to be transferred to Constantinople in order to offer his services to the Sultan. During this period, he wrote the romantic novella Clisson et Eugénie, about a soldier and his lover, in a clear parallel to Bonaparte's own relationship with Désirée. On 15 September, Bonaparte was removed from the list of generals in regular service for his refusal to serve in the Vendée campaign. He faced a difficult financial situation and reduced career prospects.

In which department of the Committee of Public Safety did Napoleon serve?
Answer:
the Bureau of Topography