About: http://webisa.webdatacommons.org/221915235

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	y types of fireworks contain potentially toxic substances such as potassium nitrate, copper, chlorates, arsenic and other heavy metals.
http://www.w3.org/ns/prov#wasQuotedFrom	aspca.org