About: http://webisa.webdatacommons.org/439292178

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	Concrete examples of these materials are silica (Boom, R., Sol, C. J. A. Salimans, M. M. M., Jansen, C. L., Wertheim-van Dillen, P. M. E., and van der Noordaa, J. (1990) J. Clin.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com