About: http://webisa.webdatacommons.org/423734775

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	doorphone camera (black&white or color, low light or normal light) and a display screen, i.e. a computer screen, a video handset station as shown below, an LCD screen or a household TV set.
http://www.w3.org/ns/prov#wasQuotedFrom	quantometrix.com