PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • X is a direct bond and R3 is an N-linked heteroaryl or an N-linked heterocycle;
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com