About: http://webisa.webdatacommons.org/189659218

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	wherein Hal represents a halogen atom such as chlorine or bromine and L and G2 are as defined in formula (I); or
http://www.w3.org/ns/prov#wasQuotedFrom	google.com