Input: Affirmative action in the United States
In the beginning, racial classifications that identified race were inherently suspect and subject to strict scrutiny. These classifications would only be upheld if necessary to promote a compelling governmental interest. Later the U.S. Supreme Court decided that racial classifications that benefited underrepresented minorities were to only be upheld if necessary and promoted a compelling governmental purpose. (See Richmond v. J.A. Croson Co.) There is no clear guidance about when government action is not "compelling", and such rulings are rare.

What is an example case that can help display where upholding a racial classification is beneficial?
Output: Richmond v. J.A. Croson Co.

Input: Incandescent light bulb
The halogen lamp reduces uneven evaporation of the filament and eliminates darkening of the envelope by filling the lamp with a halogen gas at low pressure, rather than an inert gas. The halogen cycle increases the lifetime of the bulb and prevents its darkening by redepositing tungsten from the inside of the bulb back onto the filament. The halogen lamp can operate its filament at a higher temperature than a standard gas filled lamp of similar power without loss of operating life. Such bulbs are much smaller than normal incandescent bulbs, and are widely used where intense illumination is needed in a limited space. Fiber-optic lamps for optical microscopy is one typical application.

What is the most common situation when a halogen bulb is used?
Output: where intense illumination is needed in a limited space

Input: Central Intelligence Agency
The role and functions of the CIA are roughly equivalent to those of the United Kingdom's Secret Intelligence Service (the SIS or MI6), the Australian Secret Intelligence Service (ASIS), the Egyptian General Intelligence Service, the Russian Foreign Intelligence Service (Sluzhba Vneshney Razvedki) (SVR), the Indian Research and Analysis Wing (RAW), the Pakistani Inter-Services Intelligence (ISI), the French foreign intelligence service Direction Générale de la Sécurité Extérieure (DGSE) and Israel's Mossad. While the preceding agencies both collect and analyze information, some like the U.S. State Department's Bureau of Intelligence and Research are purely analytical agencies.[citation needed]

What is the name of Israel's intelligence agency?
Output: Mossad

Input: Bird
Breeding usually involves some form of courtship display, typically performed by the male. Most displays are rather simple and involve some type of song. Some displays, however, are quite elaborate. Depending on the species, these may include wing or tail drumming, dancing, aerial flights, or communal lekking. Females are generally the ones that drive partner selection, although in the polyandrous phalaropes, this is reversed: plainer males choose brightly coloured females. Courtship feeding, billing and allopreening are commonly performed between partners, generally after the birds have paired and mated.

Generally, when is courtship feeding and billing performed between partners?
Output:
after the birds have paired and mated