Problem: Please answer a question about the following article about Qing dynasty:
Chinese generals and officials such as Zuo Zongtang led the suppression of rebellions and stood behind the Manchus. When the Tongzhi Emperor came to the throne at the age of five in 1861, these officials rallied around him in what was called the Tongzhi Restoration. Their aim was to adopt western military technology in order to preserve Confucian values. Zeng Guofan, in alliance with Prince Gong, sponsored the rise of younger officials such as Li Hongzhang, who put the dynasty back on its feet financially and instituted the Self-Strengthening Movement. The reformers then proceeded with institutional reforms, including China's first unified ministry of foreign affairs, the Zongli Yamen; allowing foreign diplomats to reside in the capital; establishment of the Imperial Maritime Customs Service; the formation of modernized armies, such as the Beiyang Army, as well as a navy; and the purchase from Europeans of armament factories. 
What year did Tongzhi take power?
A: 1861
Problem: Please answer a question about the following article about The Blitz:
Dowding was summoned to an Air Ministry conference on 17 October 1940 to explain the poor state of night defences and the supposed (but ultimately successful) "failure" of his daytime strategy. The criticism of his leadership extended far beyond the Air Council, and the Minister of Aircraft Production, Lord Beaverbrook, and Churchill themselves intimated their support was waning. While the failure of night defence preparation was undeniable, it was not the AOC's responsibility to accrue resources. The general neglect of the RAF until the late spurt in 1938 had left sparse resources to build defences. While it was permissible to disagree with Dowding's operational and tactical deployment of forces, the failure of the Government and Air Ministry to allot resources was ultimately the responsibility of the civil and military institutions at large. In the pre-war period, the Chamberlain Government stated that night defence from air attack should not take up much of the national effort and, along with the Air Ministry, did not make it a priority.
Who was summoned to the Air Ministry conference on October 17, 1940?
A: Dowding
Problem: Please answer a question about the following article about Botany:
Plant responses to climate and other environmental changes can inform our understanding of how these changes affect ecosystem function and productivity. For example, plant phenology can be a useful proxy for temperature in historical climatology, and the biological impact of climate change and global warming. Palynology, the analysis of fossil pollen deposits in sediments from thousands or millions of years ago allows the reconstruction of past climates. Estimates of atmospheric CO2 concentrations since the Palaeozoic have been obtained from stomatal densities and the leaf shapes and sizes of ancient land plants. Ozone depletion can expose plants to higher levels of ultraviolet radiation-B (UV-B), resulting in lower growth rates. Moreover, information from studies of community ecology, plant systematics, and taxonomy is essential to understanding vegetation change, habitat destruction and species extinction.
How can historical changes in the environment be detected?
A: plant phenology
Problem: Please answer a question about the following article about The Blitz:
From the German point of view, March 1941 saw an improvement. The Luftwaffe flew 4,000 sorties that month, including 12 major and three heavy attacks. The electronic war intensified but the Luftwaffe flew major inland missions only on moonlit nights. Ports were easier to find and made better targets. To confuse the British, radio silence was observed until the bombs fell. X- and Y-Gerät beams were placed over false targets and switched only at the last minute. Rapid frequency changes were introduced for X-Gerät, whose wider band of frequencies and greater tactical flexibility ensured it remained effective at a time when British selective jamming was degrading the effectiveness of Y-Gerät.
When did the Luftwaffe fly inland missions?
A:
only on moonlit nights