In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
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Question: Waves contain?, Context: As an electro-magnetic wave travels through the different parts of the antenna system (radio, feed line, antenna, free space) it may encounter differences in impedance (E/H, V/I, etc.). At each interface, depending on the impedance match, some fraction of the wave's energy will reflect back to the source, forming a standing wave in the feed line. The ratio of maximum power to minimum power in the wave can be measured and is called the standing wave ratio (SWR). A SWR of 1:1 is ideal. A SWR of 1.5:1 is considered to be marginally acceptable in low power applications where power loss is more critical, although an SWR as high as 6:1 may still be usable with the right equipment. Minimizing impedance differences at each interface (impedance matching) will reduce SWR and maximize power transfer through each part of the antenna system.

Answer: power


Question: Shabelle Media Network was NOT based in what city?, Context: Other radio stations based in Mogadishu include Mustaqbal Media corporation and the Shabelle Media Network, the latter of which was in 2010 awarded the Media of the Year prize by the Paris-based journalism organisation, Reporters Without Borders (RSF). In total, about one short-wave and ten private FM radio stations broadcast from the capital, with several radio stations broadcasting from the central and southern regions.

Answer: Paris


Question: Which general mentioned did not fight at Vendee?, Context: The year 1789 brought the French Revolution and with it the first division of Alsace into the départements of Haut- and Bas-Rhin. Alsatians played an active role in the French Revolution. On 21 July 1789, after receiving news of the Storming of the Bastille in Paris, a crowd of people stormed the Strasbourg city hall, forcing the city administrators to flee and putting symbolically an end to the feudal system in Alsace. In 1792, Rouget de Lisle composed in Strasbourg the Revolutionary marching song "La Marseillaise" (as Marching song for the Army of the Rhine), which later became the anthem of France. "La Marseillaise" was played for the first time in April of that year in front of the mayor of Strasbourg Philippe-Frédéric de Dietrich. Some of the most famous generals of the French Revolution also came from Alsace, notably Kellermann, the victor of Valmy, Kléber, who led the armies of the French Republic in Vendée and Westermann, who also fought in the Vendée.

Answer:
Kellermann


