About: http://webisa.webdatacommons.org/201281812

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 reconfirmation at block 46 reduces the chance that interference or other noise will be mistaken for a valid closed caption signal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com