About: http://webisa.webdatacommons.org/19547623

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	Some tuples can be used as dictionary keys (specifically, tuples that contain immutable values like strings, numbers, and other tuples).
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com