Witnesses say rocks and bottles were thrown, a lamp-post was knocked over and a news van overturned.

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But some residents reportedly missed a 19th Century lamp-post, long a romantic meeting spot, which stood at the spot before.

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The artwork, by US sculptor Charles Ray, will be replaced by a lamp-post at the tip of the Punta della Dogana.

BBC: Venice removes Charles Ray Boy with Frog statue

One clip starts by showing the car smashed into a lamp-post: then the camera pans round to show that this is no ordinary traffic accident.

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In its place will be a reproduction of the original lamp-post.

BBC: Venice removes Charles Ray Boy with Frog statue

An elegant mid-tempo ballad, the song conjures images of a lamp-post-lined avenue, with Gene Kelly performing a soft-shoe at one end and Bogart and Bacall making out at the other.

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What's more, the sensors are apparently also able to detect the proximity of the object and adjust the resistance of the door accordingly -- for instance, slowing the door down if you're about to slam it into a lamp post.

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