About: http://webisa.webdatacommons.org/89574789

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	I am not drawing any conclusions about what these things are, however I suspect there are a variety of sources; from faulty equipment, to mistaken/incorrect eye-whitnesses, to fabrication and any number of other factors.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com