About: http://webisa.webdatacommons.org/325261738

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	To alter columns back and forth between numeric types and text, we need upto 3 intermediate alters.
http://www.w3.org/ns/prov#wasQuotedFrom	moodle.org