About: http://webisa.webdatacommons.org/319321443

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	Such microphone systems 1 are used, for example, in public events such as discussions, plays, concerts etc.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com