Input: Article: An alloy of aluminium and gallium in pellet form added to water can be used to generate hydrogen. The process also produces alumina, but the expensive gallium, which prevents the formation of an oxide skin on the pellets, can be re-used. This has important potential implications for a hydrogen economy, as hydrogen can be produced on-site and does not need to be transported.

Now answer this question: When you combine an alloy of alluminum and gallium to water, what do you get?

Output: hydrogen

Input: Article: In Prussia, some officials considered a war against France both inevitable and necessary to arouse German nationalism in those states that would allow the unification of a great German empire. This aim was epitomized by Prussian Chancellor Otto von Bismarck's later statement: "I did not doubt that a Franco-German war must take place before the construction of a United Germany could be realised." Bismarck also knew that France should be the aggressor in the conflict to bring the southern German states to side with Prussia, hence giving Germans numerical superiority. Many Germans also viewed the French as the traditional destabilizer of Europe, and sought to weaken France to prevent further breaches of the peace.

Now answer this question: In bringing the southern German states to align with Prussia, what tactical outcome was achieved?

Output: Germans numerical superiority

Input: Article: Significant Russian-speaking groups also exist in Western Europe. These have been fed by several waves of immigrants since the beginning of the 20th century, each with its own flavor of language. The United Kingdom, Spain, Portugal, France, Italy, Belgium, Greece, Brazil, Norway, and Austria have significant Russian-speaking communities. According to the 2011 Census of Ireland, there were 21,639 people in the nation who use Russian as a home language. However, of this only 13% were Russian nationals. 20% held Irish citizenship, while 27% and 14% were holding the passports of Latvia and Lithuania respectively.

Now answer this question: How many people in Ireland speak Russian?

Output:
21,639