About: http://webisa.webdatacommons.org/108731937

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	Both R12 and R???13 can be organic radicals, preferably hydrocarbon, aryl, and acyl radicals, carrying, if desired, substituents such as halogens, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr