About: http://webisa.webdatacommons.org/314594745

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 the early nineteenth century, makers such as John Dunn and Robert and James Reid added keys to the closed-ended smallpipe, extending its range to almost two octaves.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org