In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

[Q]: Passage: Since about 560, the Avars had ruled over large parts of the Pannonian Basin and Carantania southeast of Francia, though in the last decades, the Avar Khaganate had to deal with Bulgarian and Croat incursions. To secure the frontier of his empire and the traffic on the trade routes to the east, Charlemagne allied with Khan Krum of Bulgaria and the Croatian duke Vojnomir, and from 791 launched several campaigns against the Avars, where he, according to the Vita Karoli Magni, encountered only modest opposition. In 796 Carolingian forces under Charlemagne's son Pepin of Italy destroyed the main Avar fortress called the Ring of the Avars and made the Khagan a Frankish vassal, while the remaining Avars retreated behind the Tisza River. The victory is perpetuated by the poem De Pippini regis Victoria Avarica. 
 Link Information: Pepin or Pippin (or Pepin Carloman, Pepinno, April 773 – 8 July 810) Answer: 23
[A]: How old was Charlemagne's son when he destroyed the Ring of the Avars?


[Q]: Passage: In October 2010, Joe Atlan started uploading his music to YouTube. In just a few days, one of his piano songs received more than 100,000 views. Since that moment, Atlan has used YouTube as the main way to share his music, projects, and stay in touch with the fans. His videos are a display of musical experimentation, sometimes with a touch of humor, usually combining instruments and sounds with no particular Genre, or making original arrangements from movie soundtracks, such as The Hobbit, Star Wars, or Pirates of the Caribbean. Atlan tends to show virtuoso skills as an entertainment and way to practice, specially using his Roland AX-7 Keytar, which has become his signature instrument. He also shares his piano compositions there and publishes them for free. Joe Atlan's songs are usually instrumental piano tracks with an epic fantasy, oceanic and hopeful atmosphere. His work on YouTube is often featured in digital magazines and music-video websites. In 2013, Atlan was also contacted by the Dubbing and Voice actor who does the official Spanish voices of Morgan Freeman, Ian McKellen among others, to start a project combining Music and Poetry.
 Link Information: Google bought the site in November 2006 for US$1.65 billion; YouTube now operates as one of Google's subsidiaries.
 Answer: Google
[A]: What corporation owns the website that Joe Atlan started uploading his music to in 2010?


[Q]: Passage: On May 10, United States President Andrew Johnson had declared that the rebellion and armed resistance was virtually at an end, and had made plans with government authorities for a formal review to honor the troops. One of his side goals was to change the mood of the capital, which was still in mourning following the assassination of United States President Abraham Lincoln a month before at Ford's Theater. Three of the leading Federal armies were close enough to participate in the procession. The Army of the Tennessee arrived via train. The Army of Georgia, also under the command of William T. Sherman, had just completed its Carolinas Campaign and had accepted the surrender of the largest remaining Confederate army, that of Joseph E. Johnston. It arrived from North Carolina in mid-May and camped around the capital city in various locations, across the Potomac River from the Army of the Potomac, fresh off its victories over Robert E. Lee in Virginia. It had arrived in Washington on May 12. Officers in the three armies who had not seen each other for some time (in some cases since before the war) communed and renewed acquaintances, while at times, the common infantrymen engaged in verbal sparring (and sometimes fisticuffs) in the town's taverns and bars over which army was superior. Sherman, concerned that his Westerners would not present as polished an image as the eastern army, drilled his forces and insisted that uniforms be cleaned, buttons and brass shined, and that bayonets glistened.
 Link Information: William Tecumseh Sherman (February 8, 1820  Answer: February 8, 1820 
[A]:
What was the birthdate of person in command of the Army of Georgia?