About: http://webisa.webdatacommons.org/188325706

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	However, the liquid such as mercury as described above is not very practical to use in terms of both cost and safety, and transparent liquid such as silicone oil is used in practical application.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com