About: http://webisa.webdatacommons.org/391586557

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	Essentially, $wpdb is an object he is available in WordPress that allows us to interface directly with the database.
http://www.w3.org/ns/prov#wasQuotedFrom	tutsplus.com