I don't know. We have arrived at the time of the semester when strange things come and go on campus, some of them possibly art installations, but then again, possibly not. These large helium-filled letters seemed to have neither minders nor artist statement. They were anchored to the ground, but kept leaping about wildly (there was wind; there was no sun; it was far more like April in England than in Los Angeles). And nor did they seem to spell out anything recognizable. So I don't know if they were celebrating, or protesting or waiting to be used in some vast cosmic scrabble game.