About: http://webisa.webdatacommons.org/79527947

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	A structure is principally formed of a given material if at least 80 percent of the structure by weight is the given material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com