-Why don't we add a ``PlaceInScope(toilet_key)`` to the above routine?
-Well, for starters, the key can be moved around (as opposed to the door
-or the light switch, which are fixed items in the toilet room). Suppose
-the player opens the door of the toilet, but drops the key in the café,
-then enters the toilet and closes the door. The condition is met and the
-key is placed in scope, when it's in another room. Second, this is a
-simple game with just a few objects, so you can define a rule for each
-of them; but in any large game, you might like to be able to refer to
-objects in bunches, and make general rules that apply to all (or some)
-of them.
+Why don't we add a :samp:`PlaceInScope({toilet_key})` to the above routine?
+Well, for starters, the key can be moved around (as opposed to the door or
+the light switch, which are fixed items in the toilet room). Suppose the
+player opens the door of the toilet, but drops the key in the café, then
+enters the toilet and closes the door. The condition is met and the key is
+placed in scope, when it's in another room. Second, this is a simple game
+with just a few objects, so you can define a rule for each of them; but in
+any large game, you might like to be able to refer to objects in bunches,
+and make general rules that apply to all (or some) of them.