This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
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Question: With the defeat of Marshal Bazaine's Army of the Rhine at Gravelotte, the French were forced to retire to Metz, where they were besieged by over 150,000 Prussian troops of the First and Second Armies. Napoleon III and MacMahon formed the new French Army of Châlons, to march on to Metz to rescue Bazaine. Napoleon III personally led the army with Marshal MacMahon in attendance. The Army of Châlons marched northeast towards the Belgian border to avoid the Prussians before striking south to link up with Bazaine. The Prussians, under the command of Field Marshal Count Helmuth von Moltke, took advantage of this maneuver to catch the French in a pincer grip. He left the Prussian First and Second Armies besieging Metz, except three corps detached to form the Army of the Meuse under the Crown Prince of Saxony. With this army and the Prussian Third Army, Moltke marched northward and caught up with the French at Beaumont on 30 August. After a sharp fight in which they lost 5,000 men and 40 cannons, the French withdrew toward Sedan. Having reformed in the town, the Army of Châlons was immediately isolated by the converging Prussian armies. Napoleon III ordered the army to break out of the encirclement immediately. With MacMahon wounded on the previous day, General Auguste Ducrot took command of the French troops in the field.

Answer: What factor forced the French to retreat to Metz?


Question: The printed circuit board industry defines heavy copper as layers exceeding three ounces of copper, or approximately 0.0042 inches (4.2 mils, 105 μm) thick. PCB designers and fabricators often use heavy copper when design and manufacturing circuit boards in order to increase current-carrying capacity as well as resistance to thermal strains. Heavy copper plated vias transfer heat to external heat sinks. IPC 2152 is a standard for determining current-carrying capacity of printed circuit board traces.

Answer: What's the minimum amount of copper a layer in a PCB can have to be considered "heavy copper"?


Question: 6th-century BCE pre-Socratic Greek philosophers Thales of Miletus and Xenophanes of Colophon were the first in the region to attempt to explain the world in terms of human reason rather than myth and tradition, thus can be said to be the first Greek humanists. Thales questioned the notion of anthropomorphic gods and Xenophanes refused to recognise the gods of his time and reserved the divine for the principle of unity in the universe. These Ionian Greeks were the first thinkers to assert that nature is available to be studied separately from the supernatural realm. Anaxagoras brought philosophy and the spirit of rational inquiry from Ionia to Athens. Pericles, the leader of Athens during the period of its greatest glory was an admirer of Anaxagoras. Other influential pre-Socratics or rational philosophers include Protagoras (like Anaxagoras a friend of Pericles), known for his famous dictum "man is the measure of all things" and Democritus, who proposed that matter was composed of atoms. Little of the written work of these early philosophers survives and they are known mainly from fragments and quotations in other writers, principally Plato and Aristotle. The historian Thucydides, noted for his scientific and rational approach to history, is also much admired by later humanists. In the 3rd century BCE, Epicurus became known for his concise phrasing of the problem of evil, lack of belief in the afterlife, and human-centred approaches to achieving eudaimonia. He was also the first Greek philosopher to admit women to his school as a rule.

Answer:
Who was one of the first Greeks to adopt a humanistic outlook?