About: http://webisa.webdatacommons.org/76564177

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	In another embodiment, R1 is independent from R2, R3, R4, R5, R5a, R5b and R6 wherein R1 is a protecting group or a label.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com