About: http://webisa.webdatacommons.org/58215488

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 your only concern is the memory which is used by Mathematica after the values are extracted from the file, then there is a simple solution which I describe in the following.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com