Input: Federal Bureau of Investigation
During the period from 1993 to 2011, FBI agents fired their weapons on 289 occasions; FBI internal reviews found the shots justified in all but 5 cases, in none of the 5 cases were people wounded. Samuel Walker, a professor of criminal justice at the University of Nebraska Omaha said the number of shots found to be unjustified was "suspiciously low." In the same time period, the FBI wounded 150 people, 70 of whom died; the FBI found all 150 shootings to be justified. Likewise, during the period from 2011 to the present, all shootings by FBI agents have been found to be justified by internal investigation. In a 2002 case in Maryland, an innocent man was shot, and later paid $1.3 million by the FBI after agents mistook him for a bank robber; the internal investigation found that the shooting was justified, based on the man's actions.

How many people were wounded in the cases where FBI shooting was not justified?
Output: none

Input: Electric motor
Large brushes are desired for a larger brush contact area to maximize motor output, but small brushes are desired for low mass to maximize the speed at which the motor can run without the brushes excessively bouncing and sparking. (Small brushes are also desirable for lower cost.) Stiffer brush springs can also be used to make brushes of a given mass work at a higher speed, but at the cost of greater friction losses (lower efficiency) and accelerated brush and commutator wear. Therefore, DC motor brush design entails a trade-off between output power, speed, and efficiency/wear.

How can the speed of larger brushes be increased?
Output: Stiffer brush springs

Input: Bern
Bern is also served by Bern Airport, located outside the city near the town of Belp. The regional airport, colloquially called Bern-Belp or Belpmoos, is connected to several European cities. Additionally Zurich Airport, Geneva Airport and EuroAirport Basel-Mulhouse-Freiburg also serve as international gateways, all reachable within two hours by car or train from Bern.

What is the name of Bern's airport?
Output: Bern Airport

Input: Hellenistic period
The major issue with the term Hellenistic lies in its convenience, as the spread of Greek culture was not the generalized phenomenon that the term implies. Some areas of the conquered world were more affected by Greek influences than others. The term Hellenistic also implies that the Greek populations were of majority in the areas in which they settled, while in many cases, the Greek settlers were actually the minority among the native populations. The Greek population and the native population did not always mix; the Greeks moved and brought their own culture, but interaction did not always occur.

How often did Greek population and natives mix?
Output:
not always