About: http://webisa.webdatacommons.org/128918474

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	We also have an extensive, internally administered program of blind sample proficiency testing (i.e., the testing laboratory does not know the sample being tested is a quality control
http://www.w3.org/ns/prov#wasQuotedFrom	sec.gov