About: http://webisa.webdatacommons.org/11316186

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	R7 is a halogen atom, a hydrocarbon group of 1 to 20 carbon atoms or a halogenated hydrocarbon group of 1 to 20 carbon atoms, examples of which are those described for R1 and R2.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com