PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The recycle and reuse of the wastewater is one of the main factors for realizing a higher closure degree of bioregenerative life support system (BLSS), and the treatment and recovery of the crew???s urine are the most difficult and critical issues.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science.gov