About: http://webisa.webdatacommons.org/196717692

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 D and E are different protecting groups and are, for example, Fmoc, Alloc, or IvDde, and G is a protecting group, for example propargyl ester or benzyl ester.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com