TASK DEFINITION: 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.
PROBLEM: A significant modification of Cubism between 1914 and 1916 was signaled by a shift towards a strong emphasis on large overlapping geometric planes and flat surface activity. This grouping of styles of painting and sculpture, especially significant between 1917 and 1920, was practiced by several artists; particularly those under contract with the art dealer and collector Leonce Rosenberg. The tightening of the compositions, the clarity and sense of order reflected in these works, led to its being referred to by the critic Maurice Raynal (fr) as 'crystal' Cubism. Considerations manifested by Cubists prior to the outset of World War Isuch as the fourth dimension, dynamism of modern life, the occult, and Henri Bergson's concept of durationhad now been vacated, replaced by a purely formal frame of reference.

SOLUTION: What did the critic Maurice Raynal begin to refer to Cubism in around 1917-1920?

PROBLEM: Paper is often characterized by weight. In the United States, the weight assigned to a paper is the weight of a ream, 500 sheets, of varying "basic sizes", before the paper is cut into the size it is sold to end customers. For example, a ream of 20 lb, 8.5 in 11 in (216 mm 279 mm) paper weighs 5 pounds, because it has been cut from a larger sheet into four pieces. In the United States, printing paper is generally 20 lb, 24 lb, or 32 lb at most. Cover stock is generally 68 lb, and 110 lb or more is considered card stock.

SOLUTION: What characteristic is paper usually classified by?

PROBLEM: In 1592, and again in 1597, Toyotomi Hideyoshi, aiming to invade China () through Korea, mobilized an army of 160,000 peasants and samurai and deployed them to Korea. (See Hideyoshi's invasions of Korea, Chosen-seibatsu (?). Taking advantage of arquebus mastery and extensive wartime experience from the Sengoku period, Japanese samurai armies made major gains in most of Korea. Kato Kiyomasa advanced to Orangkai territory (present-day Manchuria) bordering Korea to the northeast and crossed the border into Manchuria, but withdrew after retaliatory attacks from the Jurchens there, as it was clear he had outpaced the rest of the Japanese invasion force. A few of the more famous samurai generals of this war were Kato Kiyomasa, Konishi Yukinaga, and Shimazu Yoshihiro. Shimazu Yoshihiro led some 7,000 samurai and, despite being heavily outnumbered, defeated a host of allied Ming and Korean forces at the Battle of Sacheon in 1598, near the conclusion of the campaigns. Yoshihiro was feared as Oni-Shimazu ("Shimazu ogre") and his nickname spread across not only Korea but to Ming Dynasty China. In spite of the superiority of Japanese land forces, ultimately the two expeditions failed (though they did devastate the Korean landmass) from factors such as Korean naval superiority (which, led by Admiral Yi Sun-shin, harassed Japanese supply lines continuously throughout the wars, resulting in supply shortages on land), the commitment of sizeable Ming forces to Korea, Korean guerrilla actions, the underestimation of resistance by Japanese commanders (in the first campaign of 1592, Korean defenses on land were caught unprepared, under-trained, and under-armed; they were rapidly overrun, with only a limited number of successfully resistant engagements against the more-experienced and battle-hardened Japanese forces - in the second campaign of 1597, Korean and Ming forces proved to be a far more difficult challenge and, with the support of continued Korean naval superiority, limited Japanese gains to parts southeastern Korea), and wavering Japanese commitment to the campaigns as the wars dragged on. The final death blow to the Japanese campaigns in Korea came with Hideyoshi's death in late 1598 and the recall of all Japanese forces in Korea by the Council of Five Elders (established by Hideyoshi to oversee the transition from his regency to that of his son Hideyori).

SOLUTION:
When did Toyotomi Hideyoshi first send an army to Korea?