About: http://webisa.webdatacommons.org/323004406

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	The peptides are isolated such that they are substantially free of chemical precursors or other chemicals when synthesized chemically, or obtained by chemical cleavage of a protein.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com