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.

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
How old was Charlemagne's son when he destroyed the Ring of the Avars?

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
What corporation owns the website that Joe Atlan started uploading his music to in 2010?

Passage: Born in Washington, Lycoming County, Pennsylvania, Erwin settled in Portage, Wisconsin in 1853. From 1855 to 1868, Erwin lived in Jo Daviess County, Illinois and then in Stephenson County, Illinois. During the American Civil War, Erwin served in the 45th Illinois Volunteer Infantry Regiment. In 1868, Erwin moved to Tomah, Wisconsin and was in the mercantile business. From 1879 to 1882 and 1886, Erwin served on the Tomah Board of Education and was president of the school board. From 1882 to 1889, Erwin served in the Wisconsin State Senate and was a Republican. In 1889, Erwin served as postmaster for Tomah, Wisconsin. In 1902, Erwin moved with his family to Milwaukee, Wisconsin. Erwin died suddenly in Savanna, Illinois just as he was about get on a train for a trip to Omaha, Nebraska.
 Link Information: it is estimated that 620,000 to 750,000 soldiers died Answer: 620,000 to 750,000 soldiers

How many soldiers died in the war that Charles K. Erwin fought in?