About: http://webisa.webdatacommons.org/100691951

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	There are also smaller particulate contaminants consisting of inorganic matter such as sand and various organic materials such as waxes, polyethelene films, polypropylene, glue, styrofoam, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es