About: http://webisa.webdatacommons.org/66364378

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	Such systems are primarily designed to perform information retrieval, i.e. to return documents relevant to a query within a large collection.
http://www.w3.org/ns/prov#wasQuotedFrom	biomedcentral.com