PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • First, I would like to comment that the bacteria from the grey-water should not be any more of an issue than worm, bird, insect or other feces that are a natural part of the soil content, so long at the fruits/veggies are adequately rinsed prior to consumption and no human feces, or otherwise toxic substances find their way into your grey water.
http://www.w3.org/ns/prov#wasQuotedFrom
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