About: http://webisa.webdatacommons.org/414601402

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	True, but there was a period where the DS was not pirated and a period when it was heavily, and the data comparison between the two periods.So, yes, there really is a way of of telling if piracy really has a effect.
http://www.w3.org/ns/prov#wasQuotedFrom	nintendolife.com