About: http://webisa.webdatacommons.org/102197281

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	In my experience the opposite is true, writes are more expensive than reads in an RDBMS especially if your writing to tables that have indexes and constraints.
http://www.w3.org/ns/prov#wasQuotedFrom	ayende.com