PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
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  • Metformin treats diabetes by lowering insulin levels -- and several cancers, such as breast and prostate cancer, have been linked to high insulin levels, although no causal relationship has been established.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ibtimes.com