About: http://webisa.webdatacommons.org/6817537

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	spreads or illiquidity, it has been and will likely continue to be difficult to value certain of our securities, such as certain mortgage-backed securities, if trading becomes less frequent and/or market data becomes less observable.
http://www.w3.org/ns/prov#wasQuotedFrom	sec.gov