<http://webisa.webdatacommons.org/172254894>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/172254894>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<iastate.edu> .
<http://webisa.webdatacommons.org/172254894>	<http://www.w3.org/ns/prov#value>	"When considering calories generated for human consumption per acre, potato is the most productive food crop on the planet and is a critical staple in many developing countries." .
<http://webisa.webdatacommons.org/prov/493466649>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/172254894> .