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Create a 15-second continuous cinematic heavy machinery advertisement, aspect ratio 9:16, with one uninterrupted aerial take. [00-05s] Begin directly overhead with a clean 28mm lens feel, drifting slowly forward above a broad desert construction platform. Three bulldozers advance along evenly spaced parallel grading lanes, leaving distinct track impressions and smooth ribbons of leveled sand. Bright late-afternoon sunlight produces crisp, elongated shadows; fine dust remains close to the ground. [05-10s] The camera rotates gently clockwise while maintaining altitude, revealing three excavators positioned in staggered, separate excavation bays beside the grading lanes. Their booms articulate at slightly offset intervals, buckets scraping and lifting compact sandy soil with credible resistance. Keep all swing radii clear of neighboring machines, with no overlapping travel paths. Hard sunlight reveals matte paint, abraded steel, and realistic sand accumulation. [10-15s] The camera tilts gradually from vertical toward a high oblique view, revealing the formation stretching toward low, undeveloped ridgelines. Bulldozer blades maintain shallow loads; excavators deposit spoil onto stable adjacent piles. Operators remain inside enclosed cabs wearing hard hats, high-visibility clothing, and seat belts. The mood is graphic, expansive, and exact. Sound design: distant layered engines, dry track rasp, sand cascading from buckets, desert wind, and a measured low-frequency pulse.