About: http://webisa.webdatacommons.org/234158319

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	Some ETFs also invest in futures contracts or other derivative instruments to track their benchmark index.
http://www.w3.org/ns/prov#wasQuotedFrom	sec.gov