About: http://webisa.webdatacommons.org/239382486

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	And those are the coupons that the fed would be buying; because even if they perform, if you are worried about the prepayments such as generic 3.5%, you could sell them to the fed.
http://www.w3.org/ns/prov#wasQuotedFrom	seekingalpha.com