This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Example Input: Passage: After the Holocaust, which had been perpetrated by the Nazi Germany and its allies prior to and during World War II, Lemkin successfully campaigned for the universal acceptance of international laws defining and forbidding genocides. In 1946, the first session of the United Nations General Assembly adopted a resolution that "affirmed" that genocide was a crime under international law, but did not provide a legal definition of the crime. In 1948, the UN General Assembly adopted the Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG) which defined the crime of genocide for the first time. Question: In which war-era country was the Holocaust immortalized? 
Example Output: Nazi Germany

Example Input: Passage: Paris has a typical Western European oceanic climate (Köppen climate classification: Cfb ) which is affected by the North Atlantic Current. The overall climate throughout the year is mild and moderately wet. Summer days are usually warm and pleasant with average temperatures hovering between 15 and 25 °C (59 and 77 °F), and a fair amount of sunshine. Each year, however, there are a few days where the temperature rises above 32 °C (90 °F). Some years have even witnessed long periods of harsh summer weather, such as the heat wave of 2003 when temperatures exceeded 30 °C (86 °F) for weeks, surged up to 40 °C (104 °F) on some days and seldom cooled down at night. More recently, the average temperature for July 2011 was 17.6 °C (63.7 °F), with an average minimum temperature of 12.9 °C (55.2 °F) and an average maximum temperature of 23.7 °C (74.7 °F). Question: Which current affects Paris' weather?
Example Output: North Atlantic Current

Example Input: Passage: Color in glass may be obtained by addition of electrically charged ions (or color centers) that are homogeneously distributed, and by precipitation of finely dispersed particles (such as in photochromic glasses). Ordinary soda-lime glass appears colorless to the naked eye when it is thin, although iron(II) oxide (FeO) impurities of up to 0.1 wt% produce a green tint, which can be viewed in thick pieces or with the aid of scientific instruments. Further FeO and Cr2O3 additions may be used for the production of green bottles. Sulfur, together with carbon and iron salts, is used to form iron polysulfides and produce amber glass ranging from yellowish to almost black. A glass melt can also acquire an amber color from a reducing combustion atmosphere. Manganese dioxide can be added in small amounts to remove the green tint given by iron(II) oxide. When used in art glass or studio glass is colored using closely guarded recipes that involve specific combinations of metal oxides, melting temperatures and 'cook' times. Most colored glass used in the art market is manufactured in volume by vendors who serve this market although there are some glassmakers with the ability to make their own color from raw materials. Question: What other than additives can give glass a yellow color?
Example Output:
reducing combustion atmosphere