About: http://webisa.webdatacommons.org/455429177

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	Substances suitable as nanoscale or micrometer particles are oxides, especially metal oxides, carbides, and nitrides, for example SiO2, TiO2, Al2O3, ZrO2, SiC, Si3N4, and B2O3, in particular. ?????Al2O3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com