About: http://webisa.webdatacommons.org/443517279

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	The cost of two observers, on buying, transporting, setting up, cleaning, repairing, and adding new stuff is the biggest problem.
http://www.w3.org/ns/prov#wasQuotedFrom	cloudynights.com