About: http://webisa.webdatacommons.org/409435203

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 had found your first reference, but all the reading I have done is in a closed space. i am assuming that leaaving the stairs open with cause all kinds of problems.
http://www.w3.org/ns/prov#wasQuotedFrom	avsforum.com