One of the most interesting exhibits. Here we have a chair taking up three manifestations at once. One is a photograph of a chair. The Second is the physical form of the chair. And the third is the dictionary definition of the word "chair".. Abstract eh. A normal guy would scratch his head, listen to the preamble and yet again scratch his head, and then go sit on the chair. the artist, on the other hand will stare blankly at the image and keep doing so until chased away by the guards !