Input: Anti-aircraft warfare
The first issue was ammunition. Before the war it was recognised that ammunition needed to explode in the air. Both high explosive (HE) and shrapnel were used, mostly the former. Airburst fuses were either igniferious (based on a burning fuse) or mechanical (clockwork). Igniferious fuses were not well suited for anti-aircraft use. The fuse length was determined by time of flight, but the burning rate of the gunpowder was affected by altitude. The British pom-poms had only contact-fused ammunition. Zeppelins, being hydrogen filled balloons, were targets for incendiary shells and the British introduced these with airburst fuses, both shrapnel type-forward projection of incendiary 'pot' and base ejection of an incendiary stream. The British also fitted tracers to their shells for use at night. Smoke shells were also available for some AA guns, these bursts were used as targets during training.

It was understood that ammunition needed to explode where?
Output: in the air

Input: Indigenous peoples of the Americas
Although not without conflict, European/Canadian early interactions with First Nations and Inuit populations were relatively peaceful compared to the experience of native peoples in the United States. Combined with a late economic development in many regions, this relatively peaceful history has allowed Canadian Indigenous peoples to have a fairly strong influence on the early national culture while preserving their own identity. From the late 18th century, European Canadians encouraged Aboriginals to assimilate into their own culture, referred to as "Canadian culture". These attempts reached a climax in the late 19th and early 20th centuries with forced integration. National Aboriginal Day recognises the cultures and contributions of Aboriginal peoples of Canada. There are currently over 600 recognized First Nations governments or bands encompassing 1,172,790 2006 people spread across Canada with distinctive Aboriginal cultures, languages, art, and music.

What have Canadian indigenous peoples been able to have a strong influence on?
Output: national culture

Input: Richmond, Virginia
Precipitation is rather uniformly distributed throughout the year. However, dry periods lasting several weeks do occur, especially in autumn when long periods of pleasant, mild weather are most common. There is considerable variability in total monthly amounts from year to year so that no one month can be depended upon to be normal. Snow has been recorded during seven of the twelve months. Falls of 3 inches (7.6 cm) or more within 24 hours occur an average once per year. Annual snowfall, however, is usually light, averaging 10.5 inches (27 cm) per season. Snow typically remains on the ground only one or two days at a time, but remained for 16 days in 2010 (January 30 to February 14). Ice storms (freezing rain or glaze) are not uncommon, but they are seldom severe enough to do any considerable damage.

During what span of 2010 did snowfall remain for a significant amount of time on the ground in Richmond?
Output: January 30 to February 14

Input: Carnival
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.

What does vastenavond mean?
Output:
the days before fasting