0:36
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Train pulling out of a station, exterior perspective.
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1:05
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Flip sign flicking repeatedly in a ferry building, San Francisco.
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1:12
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Ferry building interior with people walking and talking, San Francisco.
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3:08
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Underground city ambience, some traffic activity overhead (4).
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2:17
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Underground city ambience, some traffic activity overhead (3).
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2:00
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Underground city ambience, some traffic activity overhead (2).
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2:15
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Underground city ambience, some traffic activity overhead (1).
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1:57
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Underground city ambience, light buzz. (3).
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2:02
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Underground city ambience, light buzz. (2).
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2:31
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Underground city ambience, light buzz. (1).
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2:49
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Underground city ambience, low hum, drone. (3).
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2:25
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Underground city ambience, low hum, drone. (2).
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2:34
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Underground city ambience, low hum, drone. (1).
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1:41
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Underground city ambience, heavy ventilation, overhead traffic (3).
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2:00
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Underground city ambience, heavy ventilation, overhead traffic (2).
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2:00
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Underground city ambience, heavy ventilation, overhead traffic (1).
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1:49
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Underground city ambience, low airy rumble, distant yelling voices. (4).
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2:30
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Underground city ambience, low airy rumble, distant yelling voices. (3).
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2:30
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Underground city ambience, low airy rumble, distant yelling voices. (2).
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2:30
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Underground city ambience, low airy rumble, distant yelling voices. (1).
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