About: http://webisa.webdatacommons.org/170728053

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	Thus, the R and R groups, for example in the compounds of Formula I or II, represent either hydrogen or the side chain of the amino acid starting material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com