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.
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Question: Passage: By August 1805, Napoleon had realized that the strategic situation had changed fundamentally. Facing a potential invasion from his continental enemies, he decided to strike first and turned his army's sights from the English Channel to the Rhine. His basic objective was to destroy the isolated Austrian armies in Southern Germany before their Russian allies could arrive. On 25 September, after great secrecy and feverish marching, 200,000 French troops began to cross the Rhine on a front of 260 km (160 mi). Austrian commander Karl Mack had gathered the greater part of the Austrian army at the fortress of Ulm in Swabia. Napoleon swung his forces to the southeast and the Grande Armée performed an elaborate wheeling movement that outflanked the Austrian positions. The Ulm Maneuver completely surprised General Mack, who belatedly understood that his army had been cut off. After some minor engagements that culminated in the Battle of Ulm, Mack finally surrendered after realizing that there was no way to break out of the French encirclement. For just 2000 French casualties, Napoleon had managed to capture a total of 60,000 Austrian soldiers through his army's rapid marching. The Ulm Campaign is generally regarded as a strategic masterpiece and was influential in the development of the Schlieffen Plan in the late 19th century. For the French, this spectacular victory on land was soured by the decisive victory that the Royal Navy attained at the Battle of Trafalgar on 21 October. After Trafalgar, Britain had total domination of the seas for the duration of the Napoleonic Wars. Question: By August 1805, Napoleon changed the primary target of his army's efforts from the English Channel to what area?

Answer: the Rhine


Question: Passage: Chopin has figured extensively in Polish literature, both in serious critical studies of his life and music and in fictional treatments. The earliest manifestation was probably an 1830 sonnet on Chopin by Leon Ulrich. French writers on Chopin (apart from Sand) have included Marcel Proust and André Gide; and he has also featured in works of Gottfried Benn and Boris Pasternak. There are numerous biographies of Chopin in English (see bibliography for some of these). Question: An 1830 sonnet was written about Chopin by what man?

Answer: Leon Ulrich


Question: Passage: The attacks on the torch in London and Paris were described as "despicable" by the Chinese government, condemning them as "deliberate disruptions... who gave no thought to the Olympic spirit or the laws of Britain and France" and who "tarnish the lofty Olympic spirit", and vowed they would continue with the relay and not allow the protests to "impede the Olympic spirit". Large-scale counter-protests by overseas Chinese and foreign-based Chinese nationals became prevalent in later segments of the relay. In San Francisco, the number of supporters were much more than the number of protesters, and in Australia, Japan, South Korea, the counter-protesters overwhelmed the protesters. A couple of skirmishes between the protesters and supporters were reported. No major protests were visible in the Latin America, Africa, and Western Asia legs of the torch relay. Question: In San Francisco, who had a larger presence than the protesters? 

Answer:
supporters