<http://schema.org/headline>
"Research: Aquatic plant life can help clean up radioactive pollution"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Science_News/2014/01/09/Research-Aquatic-plant-life-can-help-clean-up-radioactive-pollution/UPI-48191389294167/>