About: http://webisa.webdatacommons.org/40125361

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	So when you iterate over the array you just assume each element is an Animal and that Animal.talk will execute the specific implementation for that object.
http://www.w3.org/ns/prov#wasQuotedFrom	dreamincode.net