About: http://webisa.webdatacommons.org/352799538

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	Mark, i thought of that also, but videos do not count as activity such as articles and blog posts do.
http://www.w3.org/ns/prov#wasQuotedFrom	chess.com