About: http://webisa.webdatacommons.org/270957186

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	More preferred examples of R4 include hydrogen atom, an alkyl group having 1 to 6 carbon atoms, such as methyl group, ethyl group, (iso)propyl group, (iso)butyl group, (iso)pentyl group, (iso)hexyl group and phenyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com