About: http://webisa.webdatacommons.org/150572484

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	If the input stream or the output stream has headers, the input stream headers will be reproduced for each slave and the output stream headers will be suppresssed except for one slave.
http://www.w3.org/ns/prov#wasQuotedFrom	cpan.org