About: http://webisa.webdatacommons.org/118920094

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 ETFs may invest in futures contracts, options on futures contracts, other types of options and swaps
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com