About: http://webisa.webdatacommons.org/357218420

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	You would need to iterate through all the OPTION values and test for whether they are a number or not - something like:
http://www.w3.org/ns/prov#wasQuotedFrom	codeguru.com