About: http://webisa.webdatacommons.org/347367971

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	Preferred is a combination where R14 is a methyl group and R15 is a hydrogen atom, or where R14 and R15 are both hydrogen atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com