About: http://webisa.webdatacommons.org/63844061

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	Again, it needs to check for rows with the column specified set to a value, and there is an index to support this, T_NONUQ and it does a fast scan of it.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com