About: http://webisa.webdatacommons.org/277595702

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	We have had spacewalks since before the shuttle.I am not trying to argue for or against whether the shuttle was a step forward or not, just that your examples seem weak.
http://www.w3.org/ns/prov#wasQuotedFrom	dailytech.com