This undated photo provided by Sidewalk Toronto shows the eastern waterfront of Toronto, Canada. Sidewalk Labs has partnered with a government agency known as Waterfront Toronto with plans to erect mid-rise apartments, offices, shops and a school on a 12-acre (4.9-hectare) site _ a first step toward what it hopes will eventually be a 800-acre (325-hectare) development. (Sidewalk Toronto via AP)
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