<http://webisa.webdatacommons.org/prov/371261152>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/254339096> .
<http://webisa.webdatacommons.org/254339096>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<eurekalert.org> .
<http://webisa.webdatacommons.org/254339096>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/254339096>	<http://www.w3.org/ns/prov#value>	"Polyphenols are natural antioxidants found in grapes and some other plant foods." .