PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The researchers coded the tweets for frequency of sharing, tone toward vaccinations and links to sources such as news outlets, advocacy groups, or healthcare providers and also checked whether the claims being made in each tweet were scientifically substantiated.
http://www.w3.org/ns/prov#wasQuotedFrom
  • yahoo.com