About: http://webisa.webdatacommons.org/370621379

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 recording the vacuum values prevailing in the area of the vacuum cleaner, vacuum switches may be arranged at different points, for example at 16 and 16' in the embodiment illustrated in FIG. 1.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com