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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	If the field is empty or contains something other than 4 or four then the script will end and the E-Mail will not be sent or executed.
http://www.w3.org/ns/prov#wasQuotedFrom	sitepoint.com