About: http://webisa.webdatacommons.org/178883727

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 major drawback of these systems is that they all require 2 sets of related equipment, including the camera, videotape recorder, and cable line.
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com