In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

Q: Seoul, South Korea (CNN) -- North Korea on Monday fired more projectiles into the sea off its east coast, South Korean officials said, urging Pyongyang to refrain from "tension-creating acts." But Pyongyang described the launches as a "regular military exercise." The South Korean Defense Ministry still needs to analyze exactly what the North has been firing for the past three days, said Choi Yong-su, an official in the ministry representative's office. They could be short-range missiles or a new kind of large-caliber artillery rocket, the ministry said. The North fired three projectiles into waters off its east coast Saturday and a fourth Sunday. It fired two more Monday, Choi said.North Korea says the launches are a "regular military exercise"North Korea has fired six projectiles into the sea over the past three days, Seoul saysThe South says they could be short-range missiles or large-scale artilleryThe North last week criticized the presence of a U.S. aircraft carrier in the region 
 Question:Before last week, tensions in the region had eased from a period in March and April that included near daily _ threats of war against South Korea and the United States.

A: North Korea
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Q: (CNN) Hundreds of law enforcement officers were scouring Orlando early Tuesday for a man suspected of fatally shooting a police officer outside a Walmart. The suspect fled, triggering an intense manhunt that included door-to-door searches in apartment complexes and the placing of a dozen schools on lockdown. Another officer died while taking part in the search for the gunman. The Orange County sheriff's deputy died when his motorcycle collided with another vehicle. After the deaths of two law enforcement officers in one day, Orlando Police Chief John Mina vowed to find the suspect -- who has been identified as Markeith Loyd.A reward of up to $60,000 is offered for information leading to Markeith Loyd's arrestMaster Sgt. Debra Clayton's death marks the first gun-related police fatality of 2017 in the United States 
 Question:_ was married and the mother of a college-age son.

A: Debra Clayton
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Q: Near Mosul, Iraq (CNN) Iraqi forces entered ISIS-held Mosul on Thursday for the first time in more than two years, and are in a head-to-head battle with militants on the front line, defense officials said. Iraqi Defense Ministry spokesman Brig. Gen. Tahsin Ibrahim told CNN that units of the 9th Armored Division had entered the key city and that troops had stormed the neighborhood of al Intisar in the east. Penetrating the eastern border has been the most significant breakthrough in the offensive, which was launched two weeks ago to free Mosul from the militant group's brutal rule. Officials had warned that entering the city would likely trigger the fiercest fighting yet, and that the battle is expected to be fought "street to street," or even "house to house."Iraqi security forces kill two ISIS suicide bombers in eastern MosulEntering the city is a significant breakthrough, but troops face enormous challenges 
 Question:Now they say _ teenagers wearing suicide vests are riding around the eastern neighborhoods of the city on motorbikes.

A:
ISIS
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