About: http://webisa.webdatacommons.org/159116170

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	These sensors send alerts to a call-centre operator who can organise a response, perhaps call out a designated key-holder, organise a visit to see if there is a problem, or ring the emergency services.
http://www.w3.org/ns/prov#wasQuotedFrom	oup.com