About: http://webisa.webdatacommons.org/134150665

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 black powder, composed of various substances, is placed in the tube and pressed up to the end, a wad of cotton or other material being forced down upon it.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com