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An example of the three different triad types for one of the reference objects (wine bottle) presented during testing: (A) Th+A vs. Tax (corkscrew, water bottle), (B) Th-A vs. Tax (cheese, water bottle), and (C) Th-A vs. Th+A (cheese, corkscrew). The reference object was always positioned at the top and the two possible choices at the bottom of the triad. Each object was coarsely scaled to retain a realistic analogy to the other objects in the triad.
