About: http://webisa.webdatacommons.org/260649723

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	It is a matter of designing a resonating chamber, long organ pipe types and also chamber types, think of large police whistles, same idea.
http://www.w3.org/ns/prov#wasQuotedFrom	stanleysteamers.com