About: http://webisa.webdatacommons.org/371651329

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. 3 is a schematic depicting a system for simultaneously collecting a representative, non-contaminated sample and an associated duplicate sample, according the present invention;
http://www.w3.org/ns/prov#wasQuotedFrom	google.es