About: http://webisa.webdatacommons.org/220443399

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	Corrosive gases and vapors such as chlorine, phosgene, and chloropicrin were used as warfare agents and in terrorist acts.
http://www.w3.org/ns/prov#wasQuotedFrom	science.gov