About: http://webisa.webdatacommons.org/405757030

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 material used is the same as previously described, i.e. BPSG, and the thickness is roughly the same, i.e. about 5000 Angstroms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com