About: http://webisa.webdatacommons.org/293330545

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	A nested matrix is a matrix which can have elements of both the native type (let's say int for the sake of simplicity) and matrices.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com