| http://www.w3.org/ns/prov#value | - For example, radon was measured at 100 picocuries per liter in the kitchen of the New York summer home of Dr. Lynn Sugarman, and the gas was determined to be emitting from the richly grained cream, brown, and burgundy granite countertops in that room.Radon is the second leading cause of lung cancer (smoking is the first) and is considered especially dangerous to smokers, whose lungs are already co
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