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<http://webisa.webdatacommons.org/305543941>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sciencedaily.com> .
<http://webisa.webdatacommons.org/305543941>	<http://www.w3.org/ns/prov#value>	"The difference varies widely across crop types and species, however." .
<http://webisa.webdatacommons.org/prov/72410433>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/305543941> .