PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If the sensor is a piezoelectric sensor or piezoelectric crystal, a resistor having a fixed resistance is connected in series with the piezoelectric sensor, wherein a voltage drop is measurable across the fixed resistor, which voltage drop corresponds to an amount of change in force being applied to the piezoelectric sensor.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com