<http://webisa.webdatacommons.org/prov/25127308>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/34242431> .
<http://webisa.webdatacommons.org/34242431>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/34242431>	<http://www.w3.org/ns/prov#value>	"Chemical products such as pesticides have been used to increase crop production, especially in undeveloped countries." .
<http://webisa.webdatacommons.org/34242431>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<usda.gov> .