About: http://webisa.webdatacommons.org/404078640

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	Use them under gravel, for instance, rather than polyethylene or other kinds of waterproof plastic.
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net