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Link (optional): any link <   (subtypeOf) >   (subtype) ^   (instanceOf) :   (instance) !   (exclusion) /   (closed_exclusion) -   (inverse) =   (equal) L   (LocationOf) l   (location) M   (memberOf) m   (member) S   (substanceOf) s   (substance) P   (spatialPartOf/subprocessOf) p   (spatialPart/subprocess) O   (objectOf) o   (object) U   (urlOf) u   (url) T   (toolOf/techniqueOf) t   (tool/technique)