Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Northwestern library system consists of four libraries on the Evanston campus including the present main library, University Library and the original library building, Deering Library; three libraries on the Chicago campus; and the library affiliated with Garrett-Evangelical Theological Seminary. The University Library contains over 4.9 million volumes, 4.6 million microforms, and almost 99,000 periodicals making it (by volume) the 30th-largest university library in North America and the 10th-largest library among private universities. Notable collections in the library system include the Melville J. Herskovits Library of African Studies, the largest Africana collection in the world, an extensive collection of early edition printed music and manuscripts as well as late-modern works, and an art collection noted for its 19th and 20th-century Western art and architecture periodicals. The library system participates with 15 other universities in digitizing its collections as a part of the Google Book Search project. The Mary and Leigh Block Museum of Art is a major art museum in Chicago, containing more than 4,000 works in its permanent collection as well as dedicating a third of its space to temporary and traveling exhibitions.
What does the Google Book Search project help libraries with?
A: digitizing its collections

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
During World War II, the British at Bletchley Park achieved a number of successes at breaking encrypted German military communications. The German encryption machine, Enigma, was first attacked with the help of the electro-mechanical bombes. To crack the more sophisticated German Lorenz SZ 40/42 machine, used for high-level Army communications, Max Newman and his colleagues commissioned Flowers to build the Colossus. He spent eleven months from early February 1943 designing and building the first Colossus. After a functional test in December 1943, Colossus was shipped to Bletchley Park, where it was delivered on 18 January 1944 and attacked its first message on 5 February.
Who built the first Colossus in 1943?
A: Flowers

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Gateway National Recreation Area contains over 26,000 acres (10,521.83 ha) in total, most of it surrounded by New York City, including the Jamaica Bay Wildlife Refuge in Brooklyn and Queens, over 9,000 acres (36 km2) of salt marsh, islands, and water, including most of Jamaica Bay. Also in Queens, the park includes a significant portion of the western Rockaway Peninsula, most notably Jacob Riis Park and Fort Tilden. In Staten Island, the park includes Fort Wadsworth, with historic pre-Civil War era Battery Weed and Fort Tompkins, and Great Kills Park, with beaches, trails, and a marina.
How many acres of land does Gateway Nation Recreation contain?
A: over 26,000

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In March 2003, a second rebel group, Movement for Democracy in Liberia, began launching attacks against Taylor from the southeast. Peace talks between the factions began in Accra in June of that year, and Taylor was indicted by the Special Court for Sierra Leone for crimes against humanity that same month. By July 2003, the rebels had launched an assault on Monrovia. Under heavy pressure from the international community and the domestic Women of Liberia Mass Action for Peace movement, Taylor resigned in August 2003 and went into exile in Nigeria.
where did peace talks begin between Movement For democracy in Liberia and Taylor?
A:
Accra in June of that year