About: http://webisa.webdatacommons.org/227506135

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	Steam cracking is the ???heart and soul??? of the petrochemical industry: Depending on the nature of the feedstock, it produces key building blocks such as ethylene, propylene, butadiene, and benzene.
http://www.w3.org/ns/prov#wasQuotedFrom	acs.org