About: http://webisa.webdatacommons.org/374548007

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	proof of ownership, such as an account statement that clearly shows that you held Exelon common stock on the record date or a legal proxy obtained from your bank, broker or other nominee.
http://www.w3.org/ns/prov#wasQuotedFrom	sec.gov