About: http://webisa.webdatacommons.org/424785547

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	E. Relocation diffusion requires an agent such as radio or television; expansion diffusion takes place by direct contact.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com