About: http://webisa.webdatacommons.org/328970538

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	For some applications, such as surveying, greater accuracy is required, and a system known as ???differential GPS??? has been developed to overcome this.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com