About: http://webisa.webdatacommons.org/225729390

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	The ground surface is generally grassed earth, and the material can be a geotextile such as polypropylene.
http://www.w3.org/ns/prov#wasQuotedFrom	faqs.org