About: http://webisa.webdatacommons.org/155427029

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	The number is a perfect square if and only if $k=n$ - Mathematics Stack Exchange
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com