PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Previous research by NICHD scientists and others has also shown an association between maternal obesity and birth defects, such as neural tube defects ??? serious malformations of the spinal column.
http://www.w3.org/ns/prov#wasQuotedFrom
  • phys.org