About: http://webisa.webdatacommons.org/151850569

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 book, there is a hint saying that I should use the Cauchy Schwarz inequality, but I have no clue how to use it.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com