About: http://webisa.webdatacommons.org/448978520

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	March 30, 2011 Responding to competition by major social sites, including Facebook and Twitter, Google launched the +1 button (directly next to results links).
http://www.w3.org/ns/prov#wasQuotedFrom	moz.com