About: http://webisa.webdatacommons.org/172319474

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 porous plug 26 is preferably made of a material such as porous plastic, porous ceramic, porous metals, porous glass, cellulose, cellulose derivatives, and mixtures thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com