About: http://webisa.webdatacommons.org/15020672

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	...One reason you might prefer to use the JOIN a BY 1, b BY 1 syntax is to specify a type of join such as the replicated join which will increase the performance.
http://www.w3.org/ns/prov#wasQuotedFrom	search-hadoop.com