PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • toxins in non-fermented smokeless tobacco are the TSNAs, particularly the NNNs and NNKs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sec.gov