PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • subject, at certain times, to calendar shifts, which may occur during key selling periods close to holidays such as Easter, Thanksgiving, and Christmas and regional fluctuations for events such as sales tax holidays.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sec.gov