About: http://webisa.webdatacommons.org/248865009

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	FIG. 12 illustrates one possible example of indicating that an attribute is required for at least one of the medical data fields in the first set, the second set, or both sets, and will be discussed in more detail below.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au