About: http://webisa.webdatacommons.org/340446749

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	A chemical substance is a kind of matter with a definite composition and set of properties.
http://www.w3.org/ns/prov#wasQuotedFrom	wikidoc.org