About: http://webisa.webdatacommons.org/272581197

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	When visual inspection is necessary, a portion of the chamber, such as the cover, is coated with silicone grease which gives transparency and some protection from blood clotting, although the GBH coating is preferable for this purpose.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca