Problem: Traditionally a carnival feast was the last opportunity to eat well before the time of food shortage at the end of the winter during which one was limited to the minimum necessary. On what nowadays is called vastenavond (the days before fasting) all the remaining winter stores of lard, butter and meat which were left would be eaten, for it would soon start to rot and decay. The selected livestock had in fact already been slaughtered in November and the meat would be no longer preservable. All the food that had survived the winter had to be eaten to assure that everyone was fed enough to survive until the coming spring would provide new food sources.
When would new food sources be available for those who survived the winter?
The answer is the following: spring


A large percentage of herbivores have mutualistic gut flora that help them digest plant matter, which is more difficult to digest than animal prey. This gut flora is made up of cellulose-digesting protozoans or bacteria living in the herbivores' intestines. Coral reefs are the result of mutualisms between coral organisms and various types of algae that live inside them. Most land plants and land ecosystems rely on mutualisms between the plants, which fix carbon from the air, and mycorrhyzal fungi, which help in extracting water and minerals from the ground.
What do coral and algae produce together?
Coral reefs


Input: Richmond, Virginia
Davis and his cabinet left the city by train that night, as government officials burned documents and departing Confederate troops burned tobacco and other warehouses to deny their contents to the victors. On April 2, 1865, General Godfrey Weitzel, commander of the 25th corps of the United States Colored Troops, accepted the city's surrender from the mayor and group of leading citizens who remained. The Union troops eventually managed to stop the raging fires but about 25% of the city's buildings were destroyed-

What general received the surrender of Richmond?
Output: Godfrey Weitzel


Input: Article: The antiquity of this form of writing extends before the invention of paper around the year 100 in China. Note each palm leaf section was only several lines, written longitudinally across the leaf, and bound by twine to the other sections. The outer portion was decorated. The alphabets of Southeast Asia tended to be abugidas, until the arrival of the Europeans, who used words that also ended in consonants, not just vowels. Other forms of official documents, which did not use paper, included Javanese copperplate scrolls. This material would have been more durable than paper in the tropical climate of Southeast Asia.

Now answer this question: Which form of writing extended before the invention of paper?

Output: palm leaf


Article: The Kushan Empire, a collection of Yuezhi tribes, took control of the region in the first century CE and ruled until the 4th century CE during which time Buddhism, Nestorian Christianity, Zoroastrianism, and Manichaeism were all practiced in the region. Later the Hephthalite Empire, a collection of nomadic tribes, moved into the region and Arabs brought Islam in the early eighth century. Central Asia continued in its role as a commercial crossroads, linking China, the steppes to the north, and the Islamic heartland.

Question: What empire brought Islam practices with them?
Ans: Hephthalite Empire,


Input: BeiDou Navigation Satellite System
According to Sun Jiadong, the chief designer of the navigation system, "Many organizations have been using our system for a while, and they like it very much."

Who is the chief designer of the BeiDou navigation system?
Output:
Sun Jiadong