About: http://webisa.webdatacommons.org/170441358

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	The circuit board 503 is connected to peripheral devices (not shown) to allow input and output of various types of electrical signals and a source voltage.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com