<http://webisa.webdatacommons.org/15232622>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<fao.org> .
<http://webisa.webdatacommons.org/15232622>	<http://www.w3.org/ns/prov#value>	"The time required to concentrate run-off depends mainly on distance of flows, elevation" .
<http://webisa.webdatacommons.org/prov/383655216>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/15232622> .
<http://webisa.webdatacommons.org/15232622>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .