Example: * Directions and Doors - Allowing the player and his sidekick Clark to see into various rooms.

    "Changing Room"
    
    Include Facing by Emily Short.

    The Changing Room is a room. The white door is north of the Changing Room and south of the Hallway. The white door is a door. Clark is a man in the changing room. A persuasion rule: persuasion succeeds. The closet door is west of the changing room and east of the Storage Closet. The closet door is a door. It is closed and locked.
    
    The sliding glass door is a door. It is southeast of the changing room and northwest of the Patio. It is transparent.
    
    Rule for distantly describing the hallway:
        say "Off in the hallway, you make out a steady stream of auditioners coming and going; some looking tense, some relieved."
        
    Rule for distantly describing a room (called target) when the occluding door is closed and the occluding door is transparent:
        let N be indexed text;
        now N is "[the target]";
        say "Through the glass of [the occluding door], you make out [N in lower case]."
    
    Test me with "look north / close white door / clark, look north / look east / Clark, look east / look west / Clark, look west / look southeast / open sliding door / se / look nw / close door / look nw".