PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, pulses are a mixture of low and high frequencies, depending on their rise time, duration, and repetition rate.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mira.net