About: http://webisa.webdatacommons.org/177092345

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	One sample is the test sample being analyzed for the presence of microorganisms, the other is a ???dummy??? or reference sample, artificially prepared to ensure that it does not contain any microorganisms 88.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com