| http://www.w3.org/ns/prov#value | - Constructed on 246 hectares of once heavily contaminated industrial land, one of the first challenges that faced the Olympic Park organisers was reclaiming the site.98% of the materials from the site???s demolished buildings, including glue factories, a chemical works and an oil refinery, were re-used and 700,000 cubic metres of soil, enough to fill two billion cans of coke, were cleansed to be re
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