I can't. I can maybe-sortof-vaguely imagine a marquee, but I can't put words on it. I don't know how to imagine words except by thinking them.

(The extent to which I can imagine a marquee is: I can't see anything, or even "see" anything, but I sort of get an impression of a banner held between two poles. Similarly if I try to imagine a field, I sort of get an impression of something green and spiky. The impressions are very weak. I don't even know if I'm actually imagining these things, or just imagining that I'm imagining them, or if there's a difference.)