About: http://webisa.webdatacommons.org/74279169

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	Nitrous oxide, or what is commonly known as laughing gas, is a chemical compound that has been widely used as an anesthetic and analgesic agent in dentistry.
http://www.w3.org/ns/prov#wasQuotedFrom	mygreatsmile.com