About: http://webisa.webdatacommons.org/295530271

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	I believe your question is a duplicate of If strings are immutable in .NET, then why does Substring take O(n) time?.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com