About: http://webisa.webdatacommons.org/83296334

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	Full emergency pressure is applied automatically whenever the brake-pipe pressure is reduced below a pre-determined point, whether through leakage or other causes.
http://www.w3.org/ns/prov#wasQuotedFrom	nycsubway.org