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: The White House says President Obama will offer congratulations to Israeli Prime Minister Benjamin Netanyahu following his come-from-behind election victory, but not until after a coalition government is formed 'days' from now. The U-turn comes hours after Obama political strategy director David Simas added fuel to U.S.-Israeli tensions by stopping short of congratulating Netanyahu – and instead only patting Israelis on the back for voting. 'We want to congratulate the Israeli people for the democratic process – for the election that they just engaged in, with all the parties that engaged in that election,' Simas had said. Aboard Air Force One, White House Press Secretary Josh Earnest told reporters that Obama plans to call Netanyahu 'in the coming days.'White House said Wednesday that John Kerry phoned the Israeli PM – from the scene of his Iran negotiations – on behalf of the State DepartmentObama plans to call him in the coming days, his press secretary said, but wouldn't give specificsOpposition leader immediately congratulated Netanyahu on his stunning win, but President Obama won't until Israel's president asks the PM to form a coalition governmentNetanyahu's Likud party earned 30 of the Knesset's 120 seats, enough to control a majority with help from other ring-wing and ultra-Orthodox partiesThe election was widely seen as a referendum on Netanyahu and a former senior Obama campaign elped organize opposition voters 
 Question:Pictured are _ supporters cheering as the results come in.

A: Benjamin Netanyahu
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Q: Washington (CNN) The Navy is looking to increase its use of drones that are more and more independent of direct human control despite the concerns of alarmed scientists and inventors over increasing automation in the military. In recent days, Pentagon officials and Navy leaders have spoken about the program and the push to develop more autonomous and intelligent unmanned systems. Secretary of Defense Ash Carter in a speech earlier this month confirmed that the United States was developing "self-driving boats which can network together to do all kinds of missions, from fleet defense to close-in surveillance, without putting sailors at risk."Navy leaders have spoken about the push to develop more autonomous and intelligent unmanned systemsThe Navy's push comes despite critics expressing increasing alarm at further automating drones 
 Question:_ contract aims to equip hundreds of ships with drones.

A: Navy
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Q: Stunning footage has emerged showing wave-like clouds over the skies of Colorado. The Breckenridge Resort tweeted the video to highlight something known as Kelvin-Helmholtz waves, which can be found all over the solar system, including in Saturn's atmosphere. This beautiful pattern emerges in clouds when two different layers of air in the atmosphere are moving at different speeds. Kelvin-Helmholtz waves are everywhere. From Earth's clouds and ocean surfaces to the atmosphere of Jupiter, these waves have a striking pattern - a series of curled hills moving steadily in one direction. The shape of this pattern has a simple cause. A fast fluid, say wind, moving past a slower one, such as water, naturally creates this wave shape.Pattern created when when two layers of air move at different speedsThese Kelvin-Helmholtz waves are more common than first thoughtCan also be found in Saturn's atmopshere and Earth's magnetosphere 
 Question:The first paper compared Kelvin-_ waves to what was seen in the solar wind, the second team compared it to what was happening closer to Earth.

A:
Helmholtz
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