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Huge heaps of coal and gravel, and a green tractor pulling a blue watertank passes by, spraying water on a heap of coal. The spray is white with faint rainbow colors and contrasts with the black coal.
Huge heaps of coal and gravel, and a green tractor pulling a blue watertank passes by, spraying water on a heap of coal. The spray is white with faint rainbow colors and contrasts with the black coal.