About: http://webisa.webdatacommons.org/54375759

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 FIG. 6, reference numeral 1 denotes an approximately circular or elliptical baffle board formed of material such as synthetic resin or wood through which no sound is transmitted.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com