About: http://webisa.webdatacommons.org/137148148

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	In the manufacture of a cold-cathode fluorescent lamp, impurities such as water are usually removed from the glass tube before electrodes each having an yttrium oxide film are sealed within the tube.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com