About: http://webisa.webdatacommons.org/343151424

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	Indicator bubble 18 desirably is sufficiently light-transmissive to enable the appearance change to be read at an appropriate viewing distance, for example from about 0.2 m to about 3 m, with the naked eye or other suitable instrument.
http://www.w3.org/ns/prov#wasQuotedFrom	google.de