About: http://webisa.webdatacommons.org/31416816

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	where R1, R2, and R3 are hydrogen or organic groups and L is a halogen atom, a sulfonate, or a phenoxide.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca