PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The atmosphere in which early bacteria grew and flourished was a toxic chemical sea of water and gases such as methane, carbon dioxide, nitrogen, ammonia and hydrogen, as well as deadly carbon monoxide, hydrogen sulfide and hydrogen cyanide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • heartlandmicrobes.com