About: http://webisa.webdatacommons.org/417287247

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	Pythagoras was shaken when he contemplated a quantity such as the square root of a negative number.
http://www.w3.org/ns/prov#wasQuotedFrom	pinehill.org