PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since 2004, live events such as web chats and videoconferences have been conducted for students in both countries, allowing them a connection to the mission scientists.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science.gov