About: http://webisa.webdatacommons.org/123077625

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	As explained later in detail, there is a limit in that this ring-like function can perform two-dimensional differentiation of even order only.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com