The mark consists of the design and layout of an over-sized three-dimensional inflated model of a brain, namely, a human brain. The three-dimensional inflated model has an exterior, an interior, and a generally flat bottom. The exterior has three-dimensional features, namely, over-sized gyri and sulci, over-sized veins, over-sized sections of the brain, and a unique arrangement of plaques. The interior has three-dimensional features in the passageway, namely, pillowed walls, and inflated representations of features of the brain, and a unique arrangement of plaques. The interior has soft, flexible walls along the passageway. The three-dimensional inflated model has a single story, over-sized passageway through the interior with over-sized openings through the exterior and into the passageway. The mark consists of the unique shape, size, and layout of the three-dimensional inflated model, namely, the shape, size, and layout of the over-sized sections of the brain; the shape, size, and layout gyri, sulci, and veins on the exterior of the three-dimensional inflated model; the shape, size, and layout of the over-sized openings into the interior of the three-dimensional inflated model; the shape, size, and layout of the passageway in the brain; the shape, size, and layout of the pillowed surface of the interior of the three-dimensional inflated model; and the overall shape, size, and layout of the three-dimensional inflated model. The three-dimensional inflated model is brightly colored, namely, red and pink. The colors red and pink are claimed as a feature of the mark.