Problem: The Ravens stayed at home for a matchup against the Raiders who never won at Baltimore. Unfortunately the Ravens could not hold on to the lead after Derek Carr found Michael Crabtree in the end zone near the end of the game. Baltimore began driving down the field but the drive stalled allowing the Raiders to win at Baltimore for the first time in history dropping the Ravens 3-1. With the Steelers win, the Ravens dropped to second place in the AFC North
Answer this question based on the article: How many catches did Crabtree have?
A: 1

Problem: The Mongols' greatest triumph was when Kublai Khan established the Yuan dynasty in China in 1271. The Yuan dynasty created a "Han Army" out of defected Jin troops and an army of defected Song troops called the "Newly Submitted Army" . The Mongol force which invaded southern China was far greater than the force they sent to invade the Middle East in 1256. The Yuan dynasty established the top-level government agency Bureau of Buddhist and Tibetan Affairs to govern Tibet, which was conquered by the Mongols and put under Yuan rule. The Mongols also invaded Sakhalin Island between 1264 and 1308. Likewise, Korea became a semi-autonomous vassal state and compulsory ally of the Yuan dynasty for about 80 years. The Yuan dynasty was eventually overthrown during the Red Turban Rebellion in 1368 by the Han Chinese who gained independence and established the Ming dynasty.
Answer this question based on the article: What happened later, the Red Turban Rebellion or the Yuan Dynasty?
A: Rebellion

Problem: World War I began as a clash of 20th-century technology and 19th-century tactics, with the inevitably large ensuing casualties. By the end of 1917, however, the major armies, now numbering millions of men, had modernised and were making use of telephone, wireless communication, armoured cars, tanks, and aircraft. Infantry formations were reorganised, so that 100-man companies were no longer the main unit of manoeuvre; instead, squads of 10 or so men, under the command of a junior NCO, were favoured. Artillery also underwent a revolution. In 1914, cannons were positioned in the front line and fired directly at their targets. By 1917, indirect fire with guns was commonplace, using new techniques for spotting and ranging, notably aircraft and the often overlooked field telephone. Counter-battery missions became commonplace, also, and sound detection was used to locate enemy batteries.
Answer this question based on the article: what were cannons made to fire at?
A:
directly at their targets