About: http://webisa.webdatacommons.org/10938640

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	Each of the units, such as Element, Comment, Entity, are sub-interface of Node, and can be upcast to Node.
http://www.w3.org/ns/prov#wasQuotedFrom	ntu.edu.sg