About: http://webisa.webdatacommons.org/195423161

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	Thus, the presence of flow due to introduction or other causes (e.g., diffusion, random walks) must be combined with flow velocity, as explained in ???Targeting???.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com