About: http://webisa.webdatacommons.org/24045079

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	Of course it must be the only difference, ie, nothing else gets connected to the shield other than the arduino.
http://www.w3.org/ns/prov#wasQuotedFrom	arduino.cc