About: http://webisa.webdatacommons.org/374903979

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	With the above-described construction, and as stated, the lamp 106 may be operated for several hours to produce the high level of ozone, after which lamp 108 is also energized for a short period, such as 30 minutes or so.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com