The integrity of consciousness refers to the nature of processing stimuli based on their own experience in order to maintain the completeness of consciousness when the external stimuli directly acting on the sensory organs are incomplete. According to the above definition, which of the following options does not belong to "perceptual integrity"? ["In the dense fog, people can't see the object in front, but through a rough observation of the outline, they know that it is a bicycle.", 'When people look at the gapped ring, they usually make up the missing part in their hearts to form the image of a whole ring.', 'Xiao Wang heard the sound of cutting melon, and at the same time, he smelled the aroma of melon. He felt that the colleague next to him was cutting melon.', 'A piece of red paper is half exposed to sunlight and half is not exposed to sunlight. The color varies greatly from a distance. One can still tell that this is a red piece of paper.']