About: http://webisa.webdatacommons.org/367629977

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	This answer is wrong. os.path.exists returns true for things that are not files, such as directories.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com