About: http://webisa.webdatacommons.org/143863988

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	If we open the door everyday and there is a wall or tree right in front of it, we are constantly confronting an obstruction.
http://www.w3.org/ns/prov#wasQuotedFrom	mcs.ca