About: http://webisa.webdatacommons.org/290877421

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	A ping is a signal, like a knock on the door, to a blog or search engine that says ???Hey, something???s happening over there that you might want to pay attention to???.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com