PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I???d been blabbing away for the past hour or so about chemical contaminants, imparting my imperfect knowledge upon my seven brilliant college students. ???So, what do you think are the five most important contaminants???? asked Beth, my student who has been investigating atrazine, one of the most ubiquitous pesticides in this country.
http://www.w3.org/ns/prov#wasQuotedFrom
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