Melody is a sequence of notes that are important, but satisfying in music.
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Soldiers also made dugouts and funk holes in the side of the trenches to give them some protection from the weather and enemy fire. The front-line trenches were also protected by barbed-wire entanglements and machine-gun posts. Short trenches called saps were dug from the front-trench into No-Man's Land.
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This was because the secret service was worried about Japanese spies trying assassinate the president.
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