Input: Solar energy
Greenhouses convert solar light to heat, enabling year-round production and the growth (in enclosed environments) of specialty crops and other plants not naturally suited to the local climate. Primitive greenhouses were first used during Roman times to produce cucumbers year-round for the Roman emperor Tiberius. The first modern greenhouses were built in Europe in the 16th century to keep exotic plants brought back from explorations abroad. Greenhouses remain an important part of horticulture today, and plastic transparent materials have also been used to similar effect in polytunnels and row covers.

Where were the first modern greenhouses built?
Output: Europe

Input: Roman Republic
Each republican magistrate held certain constitutional powers. Only the People of Rome (both plebeians and patricians) had the right to confer these powers on any individual magistrate. The most powerful constitutional power was imperium. Imperium was held by both consuls and praetors. Imperium gave a magistrate the authority to command a military force. All magistrates also had the power of coercion. This was used by magistrates to maintain public order. While in Rome, all citizens had a judgement against coercion. This protection was called provocatio (see below). Magistrates also had both the power and the duty to look for omens. This power would often be used to obstruct political opponents.

Who had the right to grant powers to a magistrate?
Output: People of Rome

Input: Estonia
Estonia is situated in the northern part of the temperate climate zone and in the transition zone between maritime and continental climate. Estonia has four seasons of near-equal length. Average temperatures range from 16.3 C (61.3 F) on the Baltic islands to 18.1 C (64.6 F) inland in July, the warmest month, and from 3.5 C (25.7 F) on the Baltic islands to 7.6 C (18.3 F) inland in February, the coldest month. The average annual temperature in Estonia is 5.2 C (41.4 F). The average precipitation in 19611990 ranged from 535 to 727 mm (21.1 to 28.6 in) per year.

What section of the temperate climate zone does Estonia reside?
Output: northern part

Input: Gymnastics
The Federation of International Gymnastics (FIG) was founded in Liege in 1881. By the end of the nineteenth century, men's gymnastics competition was popular enough to be included in the first "modern" Olympic Games in 1896. From then on until the early 1950s, both national and international competitions involved a changing variety of exercises gathered under the rubric, gymnastics, that would seem strange to today's audiences and that included for example, synchronized team floor calisthenics, rope climbing, high jumping, running, and horizontal ladder. During the 1920s, women organized and participated in gymnastics events. The first women's Olympic competition was primitive, only involving synchronized calisthenics and track and field. These games were held in 1928, in Amsterdam.

Where were the first women's Olympic competitions held?
Output:
in Amsterdam