About: http://webisa.webdatacommons.org/320094805

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	db.delete_column() not worked for mysql 5.5 when the column is a foreign key
http://www.w3.org/ns/prov#wasQuotedFrom	aeracode.org