About: http://webisa.webdatacommons.org/109884587

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 said to Leopold Mozart one day: 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.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org