About: http://webisa.webdatacommons.org/343204047

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	n); and references herein to a ???quaternary??? carbon indicate the carbon atom has four non-hydrogen substituents (i.e. CRR???R???R?????? where R, R???, R??? and R?????? are each the same or different and each is other than hydrogen).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com