About: http://webisa.webdatacommons.org/329294055

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	But not the size.There is a pretty good fit between size and mass and cost with things people build.Conclusion: I am not surprised they cost within a factor of two, the same
http://www.w3.org/ns/prov#wasQuotedFrom	pianoworld.com