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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 both cases, active solar systems are used, i.e. a pump is employed to transfer the solar thermal energy to storage, which is operated by means of a di???erential thermostat.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com