The problem: Answer a question about this article:
Dell assembled computers for the EMEA market at the Limerick facility in the Republic of Ireland, and once employed about 4,500 people in that country. Dell began manufacturing in Limerick in 1991 and went on to become Ireland's largest exporter of goods and its second-largest company and foreign investor. On January 8, 2009, Dell announced that it would move all Dell manufacturing in Limerick to Dell's new plant in the Polish city of odz by January 2010. European Union officials said they would investigate a 52.7million aid package the Polish government used to attract Dell away from Ireland. European Manufacturing Facility 1 (EMF1, opened in 1990) and EMF3 form part of the Raheen Industrial Estate near Limerick. EMF2 (previously a Wang facility, later occupied by Flextronics, situated in Castletroy) closed in 2002,[citation needed] and Dell Inc. has consolidated production into EMF3 (EMF1 now[when?] contains only offices). Subsidies from the Polish government did keep Dell for a long time. After ending assembly in the Limerick plant the Cherrywood Technology Campus in Dublin was the largest Dell office in the republic with over 1200 people in sales (mainly UK & Ireland), support (enterprise support for EMEA) and research and development for cloud computing, but no more manufacturing except Dell's Alienware subsidiary, which manufactures PCs in an Athlone, Ireland plant. Whether this facility will remain in Ireland is not certain. Construction of EMF4 in odz, Poland has started[update]: Dell started production there in autumn 2007.
How many Irish employees did Dell hire?
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The answer: 4,500

Problem: Please answer a question about the following article about Light-emitting diode:
Multi-color LEDs offer not merely another means to form white light but a new means to form light of different colors. Most perceivable colors can be formed by mixing different amounts of three primary colors. This allows precise dynamic color control. As more effort is devoted to investigating this method, multi-color LEDs should have profound influence on the fundamental method that we use to produce and control light color. However, before this type of LED can play a role on the market, several technical problems must be solved. These include that this type of LED's emission power decays exponentially with rising temperature, resulting in a substantial change in color stability. Such problems inhibit and may preclude industrial use. Thus, many new package designs aimed at solving this problem have been proposed and their results are now being reproduced by researchers and scientists.
Multi-color LEDs offer what else besides the formation of white light?
A: to form light of different colors

Question: Read this and answer the question

The New Haven Division buses follow routes that had originally been covered by trolley service. Horse-drawn steetcars began operating in New Haven in the 1860s, and by the mid-1890s all the lines had become electric. In the 1920s and 1930s, some of the trolley lines began to be replaced by bus lines, with the last trolley route converted to bus in 1948. The City of New Haven is in the very early stages of considering the restoration of streetcar (light-rail) service, which has been absent since the postwar period.

Before 20th century, what was the form of public transportation in the city?
Answer: Horse-drawn steetcars

Problem: Northern leaders agreed that victory would require more than the end of fighting. Secession and Confederate nationalism had to be totally repudiated and all forms of slavery or quasi-slavery had to be eliminated. Lincoln proved effective in mobilizing support for the war goals, raising large armies and supplying them, avoiding foreign interference, and making the end of slavery a war goal. The Confederacy had a larger area than it could defend, and it failed to keep its ports open and its rivers clear. The North kept up the pressure as the South could barely feed and clothe its soldiers. Its soldiers, especially those in the East under the command of General Robert E. Lee proved highly resourceful until they finally were overwhelmed by Generals Ulysses S. Grant and William T. Sherman in 186465, The Reconstruction Era (186377) began with the Emancipation proclamation in 1863, and included freedom, full citizenship and the vote for the Southern blacks. It was followed by a reaction that left the blacks in a second class status legally, politically, socially and economically until the 1960s.
What did Lincoln do well in the war?
The answer is the following: mobilizing support for the war goals

Sure South Atlantic Ltd ("Sure") offers television for the island via 17 analogue terrestrial UHF channels, offering a mix of British, US, and South African programming. The channels are from DSTV and include Mnet, SuperSport and BBC channels. The feed signal, from MultiChoice DStv in South Africa, is received by a satellite dish at Bryant's Beacon from Intelsat 7 in the Ku band.
How many analogue terrestrial UHF channels does Sure South Atlantic LTD have?
17

Here is a question about this article: Genes with a most recent common ancestor, and thus a shared evolutionary ancestry, are known as homologs. These genes appear either from gene duplication within an organism's genome, where they are known as paralogous genes, or are the result of divergence of the genes after a speciation event, where they are known as orthologous genes,:7.6 and often perform the same or similar functions in related organisms. It is often assumed that the functions of orthologous genes are more similar than those of paralogous genes, although the difference is minimal.
What is the answer to this question: What is one reason for homologs to appear?
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So...
gene duplication within an organism's genome