About: http://webisa.webdatacommons.org/170257265

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, if the column is a string or a date or anything other than numeric, the 0 returned would have to be converted to that datatype, adding some overhead.
http://www.w3.org/ns/prov#wasQuotedFrom	sqlteam.com