The corner table is a table in the Dark corner. It is a supporter and scenery. The description is "The table bathes in bright light coming from one of the spotlights."
The corner chair is a chair in the Dark corner. The printed name of the corner chair is "chair".
The spotlights are scenery in the Dark corner. They are plural-named and distant. The description is "The spotlights cover the tables in sharp light and at the same time leaving unlit areas in shadows."
The dark shadows are scenery in the Dark corner. They are plural-named. The description is "[if the mysterious stranger is in the Dark corner]A mysterious stranger is hiding in the shadows.[otherwise]Joe Mahma is lurking there, half covered in shadows.[end if]".