Input: Article: The assumption of the use of a two-beamed cross does not determine the number of nails used in the crucifixion and some theories suggest three nails while others suggest four nails. However, throughout history larger numbers of nails have been hypothesized, at times as high as 14 nails. These variations are also present in the artistic depictions of the crucifixion. In the Western Church, before the Renaissance usually four nails would be depicted, with the feet side by side. After the Renaissance most depictions use three nails, with one foot placed on the other. Nails are almost always depicted in art, although Romans sometimes just tied the victims to the cross. The tradition also carries to Christian emblems, e.g. the Jesuits use three nails under the IHS monogram and a cross to symbolize the crucifixion.

Now answer this question: How many nails were suggested they used for the crucifixion?

Output: three nails

Input: Article: Ground Control is responsible for directing all ground traffic in designated "movement areas", except the traffic on runways. This includes planes, baggage trains, snowplows, grass cutters, fuel trucks, stair trucks, airline food trucks, conveyor belt vehicles and other vehicles. Ground Control will instruct these vehicles on which taxiways to use, which runway they will use (in the case of planes), where they will park, and when it is safe to cross runways. When a plane is ready to takeoff it will stop short of the runway, at which point it will be turned over to Tower Control. After a plane has landed, it will depart the runway and be returned to Ground Control.

Now answer this question: When a plane is ready to take off, who takes over the direction of a plane?

Output: Tower Control

Input: Article: The product claimed to be the strongest beer made is Schorschbräu's 2011 Schorschbock 57 with 57,5%. It was preceded by The End of History, a 55% Belgian ale, made by BrewDog in 2010. The same company had previously made Sink The Bismarck!, a 41% abv IPA, and Tactical Nuclear Penguin, a 32% abv Imperial stout. Each of these beers are made using the eisbock method of fractional freezing, in which a strong ale is partially frozen and the ice is repeatedly removed, until the desired strength is reached, a process that may class the product as spirits rather than beer. The German brewery Schorschbräu's Schorschbock, a 31% abv eisbock, and Hair of the Dog's Dave, a 29% abv barley wine made in 1994, used the same fractional freezing method. A 60% abv blend of beer with whiskey was jokingly claimed as the strongest beer by a Dutch brewery in July 2010.

Now answer this question: What is a strong ale called when it is frozen partially, and then the ice is removed again and again?

Output:
fractional freezing