Input: Anti-aircraft warfare
Initially sensors were optical and acoustic devices developed during the First World War and continued into the 1930s, but were quickly superseded by radar, which in turn was supplemented by optronics in the 1980s. Command and control remained primitive until the late 1930s, when Britain created an integrated system for ADGB that linked the ground-based air defence of the army's AA Command, although field-deployed air defence relied on less sophisticated arrangements. NATO later called these arrangements an "air defence ground environment", defined as "the network of ground radar sites and command and control centres within a specific theatre of operations which are used for the tactical control of air defence operations".

What agency stated that the arrangements were an air defence ground environment?
Output: NATO

Input: Brain
As a side effect of the electrochemical processes used by neurons for signaling, brain tissue generates electric fields when it is active. When large numbers of neurons show synchronized activity, the electric fields that they generate can be large enough to detect outside the skull, using electroencephalography (EEG) or magnetoencephalography (MEG). EEG recordings, along with recordings made from electrodes implanted inside the brains of animals such as rats, show that the brain of a living animal is constantly active, even during sleep. Each part of the brain shows a mixture of rhythmic and nonrhythmic activity, which may vary according to behavioral state. In mammals, the cerebral cortex tends to show large slow delta waves during sleep, faster alpha waves when the animal is awake but inattentive, and chaotic-looking irregular activity when the animal is actively engaged in a task. During an epileptic seizure, the brain's inhibitory control mechanisms fail to function and electrical activity rises to pathological levels, producing EEG traces that show large wave and spike patterns not seen in a healthy brain. Relating these population-level patterns to the computational functions of individual neurons is a major focus of current research in neurophysiology.

An EEG of the brain stands for what?
Output: electroencephalography

Input: Chicago Cubs
The Cubs enjoyed one more pennant at the close of World War II, finishing 9856. Due to the wartime travel restrictions, the first three games of the 1945 World Series were played in Detroit, where the Cubs won two games, including a one-hitter by Claude Passeau, and the final four were played at Wrigley. In Game 4 of the Series, the Curse of the Billy Goat was allegedly laid upon the Cubs when P.K. Wrigley ejected Billy Sianis, who had come to Game 4 with two box seat tickets, one for him and one for his goat. They paraded around for a few innings, but Wrigley demanded the goat leave the park due to its unpleasant odor. Upon his ejection, Mr. Sianis uttered, "The Cubs, they ain't gonna win no more." The Cubs lost Game 4, lost the Series, and have not been back since. It has also been said by many that Sianis put a "curse" on the Cubs, apparently preventing the team from playing in the World Series. After losing the 1945 World Series to the Detroit Tigers, the Cubs finished with winning seasons the next two years, but those teams did not enter post-season play.

Why were the first three games of the 1945 World Series played in Detroit?
Output: wartime travel restrictions

Input: Nintendo Entertainment System
The NES can be emulated on many other systems, most notably the PC. The first emulator was the Japanese-only Pasofami. It was soon followed by iNES, which was available in English and was cross-platform, in 1996. It was described as being the first NES emulation software that could be used by a non-expert. NESticle, a popular MS-DOS emulator, was released on April 3, 1997. There have since been many other emulators. The Virtual Console for the Wii, Nintendo 3DS and Wii U also offers emulation of many NES games.

What was the first English available emulator?
Output:
iNES