About: http://webisa.webdatacommons.org/410011887

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	The problem is if there is a rogue ' before your integer, eg '9 intval() turns it into 0 in any case - I suppose a 0 cannot do any harm, but you have lost the value.
http://www.w3.org/ns/prov#wasQuotedFrom	sitepoint.com