PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, rates of preterm delivery, low birth weight, birth defects, and other pregnancy complications are still unacceptably high even in wealthier countries, and there is much to be learned about optimal maternal nutrient requirements during pregnancy and lactation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usda.gov