About: http://webisa.webdatacommons.org/439308504

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	Move around the roof, and try different locations, to see if you can determine the direction it is coming from, using things like other buildings or mechanical rooms, as shields.
http://www.w3.org/ns/prov#wasQuotedFrom	dbstalk.com