About: http://webisa.webdatacommons.org/301635761

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	Haydn once said to Mozart's father Leopold, Before God and as an honest man, I tell you that your son is the greatest composer known to me either in person or by name, a claim that still rings true in the in 21st century.
http://www.w3.org/ns/prov#wasQuotedFrom	hkpo.com