| http://www.w3.org/ns/prov#value | - The compressed core of any preceding claim where a lubricant is present in an amount of about 0.05 to about 2 wt%, preferably about 0.2 wt% to about 0.8 wt%, and more preferably about 0.3 to about 0.7 wt%, and particularly about 0.5 wt% relative to the weight of the core. 17.
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