About: http://webisa.webdatacommons.org/389955037

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	Carbon and hydrogen are (currently) the only two types of atoms that we have good reason to believe can be used in mechanical synthesis.
http://www.w3.org/ns/prov#wasQuotedFrom	typepad.com