Input: Time
Artifacts from the Paleolithic suggest that the moon was used to reckon time as early as 6,000 years ago. Lunar calendars were among the first to appear, either 12 or 13 lunar months (either 354 or 384 days). Without intercalation to add days or months to some years, seasons quickly drift in a calendar based solely on twelve lunar months. Lunisolar calendars have a thirteenth month added to some years to make up for the difference between a full year (now known to be about 365.24 days) and a year of just twelve lunar months. The numbers twelve and thirteen came to feature prominently in many cultures, at least partly due to this relationship of months to years. Other early forms of calendars originated in Mesoamerica, particularly in ancient Mayan civilization. These calendars were religiously and astronomically based, with 18 months in a year and 20 days in a month.

How many months were in a year in the original Mayan calendars?
Output: 18

Input: Macintosh
When Steve Jobs returned to Apple in 1997 following the company's purchase of NeXT, he ordered that the OS that had been previewed as version 7.7 be branded Mac OS 8 (in place of the never-to-appear Copland OS). Since Apple had licensed only System 7 to third parties, this move effectively ended the clone line. The decision caused significant financial losses for companies like Motorola, who produced the StarMax; Umax, who produced the SuperMac; and Power Computing, who offered several lines of Mac clones, including the PowerWave, PowerTower, and PowerTower Pro. These companies had invested substantial resources in creating their own Mac-compatible hardware. Apple bought out Power Computing's license, but allowed Umax to continue selling Mac clones until their license expired, as they had a sizeable presence in the lower-end segment that Apple did not. In September 1997 Apple extended Umax' license allowing them to sell clones with Mac OS 8, the only clone maker to do so, but with the restriction that they only sell low-end systems. Without the higher profit margins of high-end systems, however, Umax judged this would not be profitable and exited the Mac clone market in May 1998, having lost USD$36 million on the program.

What did the branding of the Mac OS 8 effectively end?
Output: the clone line

Input: Anti-aircraft warfare
Batteries are usually grouped into battalions or equivalent. In the field army a light gun or SHORAD battalion is often assigned to a manoeuvre division. Heavier guns and long-range missiles may be in air-defence brigades and come under corps or higher command. Homeland air defence may have a full military structure. For example, the UK's Anti-Aircraft Command, commanded by a full British Army general was part of ADGB. At its peak in 1941–42 it comprised three AA corps with 12 AA divisions between them.

Who commanded the UK's Anti-Aircraft Command?
Output: a full British Army general

Input: Bird
The point at which chicks fledge varies dramatically. The chicks of the Synthliboramphus murrelets, like the ancient murrelet, leave the nest the night after they hatch, following their parents out to sea, where they are raised away from terrestrial predators. Some other species, such as ducks, move their chicks away from the nest at an early age. In most species, chicks leave the nest just before, or soon after, they are able to fly. The amount of parental care after fledging varies; albatross chicks leave the nest on their own and receive no further help, while other species continue some supplementary feeding after fledging. Chicks may also follow their parents during their first migration.

Which chicks leave the nest the night after they hatch?
Output:
chicks of the Synthliboramphus murrelets