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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	Hence, the overall firmness in such an arrangement is a function of both the firmness of the foam used in each separate mattress element, and the thickness of each element.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es