About: http://webisa.webdatacommons.org/450406723

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	I know this question is a few months old now but I just wanted to add that the problem might not be bringing the brackets in but your intentions on what you are going to do while in Canada.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com