About: http://webisa.webdatacommons.org/292917239

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	P is a protecting group and L is a leaving group both of which are as defined and in the book by Green referenced below.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es