About: http://webisa.webdatacommons.org/216880268

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	The ultrafine particles may be a metal oxide, carbide, nitride, mixed oxide, carbon or any particulate material or an inert material such as silica.
http://www.w3.org/ns/prov#wasQuotedFrom	justia.com