Input: Article: Deciduous trees and plants have been promoted as a means of controlling solar heating and cooling. When planted on the southern side of a building in the northern hemisphere or the northern side in the southern hemisphere, their leaves provide shade during the summer, while the bare limbs allow light to pass during the winter. Since bare, leafless trees shade 1/3 to 1/2 of incident solar radiation, there is a balance between the benefits of summer shading and the corresponding loss of winter heating. In climates with significant heating loads, deciduous trees should not be planted on the Equator facing side of a building because they will interfere with winter solar availability. They can, however, be used on the east and west sides to provide a degree of summer shading without appreciably affecting winter solar gain.

Now answer this question: Why should trees not be planted on the side of a building facing the equator?

Output: they will interfere with winter solar availability

Input: Article: Hack Wilson set a record of 56 home-runs and 190 runs-batted-in in 1930, breaking Lou Gehrig's MLB record of 176 RBI. (In 1999, a long-lost extra RBI mistakenly credited to Charlie Grimm had been found by Cooperstown researcher Cliff Kachline and verified by historian Jerome Holtzman, increasing the record number to 191.) As of 2014 the record still stands, with no serious threats coming since Gehrig (184) and Hank Greenberg (183) in the same era. The closest anyone has come to the mark in the last 75 years was Manny Ramirez's 165 RBI in 1999. In addition to the RBI record, Wilson 56 home-runs stood as the National League record until 1998, when Sammy Sosa and Mark McGwire hit 66 and 70, respectively. Wilson was named "Most Useful" player that year by the Baseball Writers' Association of America, as the official N.L. Most Valuable Player Award was not awarded until the next season.

Now answer this question: When did Hack Wilson set a record of 56 home-runs and 190 runs-batted-in?

Output: 1930

Input: Article: In addition to his many other roles, the emperor acted as the highest priest in the land who made sacrifices to Heaven, the main deities known as the Five Powers, and the spirits (shen ) of mountains and rivers. It was believed that the three realms of Heaven, Earth, and Mankind were linked by natural cycles of yin and yang and the five phases. If the emperor did not behave according to proper ritual, ethics, and morals, he could disrupt the fine balance of these cosmological cycles and cause calamities such as earthquakes, floods, droughts, epidemics, and swarms of locusts.

Now answer this question: Who made sacrifices to the main deities in this period?

Output:
the emperor