About: http://webisa.webdatacommons.org/343865519

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Developing irrigation storage and delivery systems was a complex and expensive business.
http://www.w3.org/ns/prov#wasQuotedFrom	usbr.gov