| http://www.w3.org/ns/prov#value | - (Adds Veolia China comments on incident) * Benzene levels in tapwater 20 times over safety level * Citizens stock up on bottled water and other drinks * Veolia says pollution due to industrial contamination BEIJING/PARIS, April 11 (Reuters) - Residents in the Chinese city of Lanzhou rushed to buy bottled drinks on Friday after authorities said benzene, a cancer-inducing chemical, had been found in
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