About: http://webisa.webdatacommons.org/431194213

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	Today, most such systems are constructed with programmable logic controllers (PLCs) or microcontrollers.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org