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under berlin metro line 1 geofonic raw recording on metal structure
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under berlin metro line 1 surroundings
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under berlin metro line 2 geofonic raw recording on metal structure
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under berlin metro line 2 surroundings
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under berlin metro line 3 geofonic raw recording on metal structure
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under berlin metro line 3 surroundings
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under berlin metro line 4 geofonic raw recording on metal structure
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under berlin metro line 4 surroundings
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