About: http://webisa.webdatacommons.org/210754735

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	For economy, it is further desirable that the mixer that is used to obviate stratification be engaged only when needed, i.e. only when thermal stratification is taking place and cooler strata are at risk of freezing.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com