About: http://webisa.webdatacommons.org/328187379

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	Gravitational Field : ???Gravity is the most familiar force but it is actually rather feeble: it is easy to pick up an apple, defeating the gravitational pull of the entire planet.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com