About: http://webisa.webdatacommons.org/200206263

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 answer is a qualified 'no', not because of macro limitations (which could be addressed) but because even with newer engines the maximum \insert number remains at 255, at least for pdfTeX and XeTeX. Thus if you try
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com