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  Blank posters on walls or digital screens near escalators, elevators, or at the entrance of stores

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  Blank poster areas on the walls of crowded metro stations

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  Blank advertisements on buses, trucks, or even parked vans in high-traffic areas

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  Blank advertisement areas in train or bus stations, especially around ticket counters or seating areas

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  A white poster displayed on a bus stop glass panel, with a busy street in the background