About: http://webisa.webdatacommons.org/175846096

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	As used herein, the term ???particles??? shall refer to any particulate or granular material containing granules, particles or other discrete components of at least two different specific gravities or ranges of specific gravity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com